The proofreader would be instructed to not touch any of that.
Well that’s one problem right there, one of the lesser problems at that. Even if one is aware of the markers themselves it would be easy to accidentally damage something like that. Consider a seemingly innocent search and replace using anything at all that might be in the title—such as from your example replacing “Eric” with another name. The method would be very fragile and require the utmost care in protecting those separators.
Then you’ve got cases of duplicates (copying the Draft as a “first draft” for example). What of items that don’t have a name? That will become much more common a practice I am sure, once binder titles act more like they do on iOS (if you aren’t aware, if a title is left blank it uses the first few dozen words or so from the file or synopsis).
It’s why we can’t depend upon the names of things with the folder sync feature either, and use internal ID numbers to keep things together.
That is of course an approach, using internal IDs—and right now that wouldn’t be too awkward, but once the format gets updated to use UUIDs for better robustness in a sync environment, you’ll end up with some rather ugly dividers in your file, like so:
<ID:D765AB88-FA38-4BC1-A382-5F8BD522716F>
Chapter One
<ID:C2BB7606-193E-46AB-A32E-5381E2EAD08F>
- Midnight -
LOREM IPSUM DOLOR sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
* * *
<ID:A1BC1A79-3BDD-4104-A4F7-41E52F1684A0>
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
That’s not the end of the world, but now that we have a practical example to look at, you might also spot some other deeper and much more difficult to solve problems. This is one of those ideas that sound good on the surface, until you start going down the feature list in the compiler, and Scrivener in general.
What happens with all of these headings and separators the compiler can insert into the text? Do the asterisks and scene heading that were dynamically inserted between scenes from the Separators and Formatting pane now end up in the scene text itself? The next time you compile it would look like:
<ID:D765AB88-FA38-4BC1-A382-5F8BD522716F>
Chapter One
Chapter One
<ID:C2BB7606-193E-46AB-A32E-5381E2EAD08F>
- Midnight -
- Midnight -
LOREM IPSUM DOLOR sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
* * *
* * *
<ID:A1BC1A79-3BDD-4104-A4F7-41E52F1684A0>
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
And that’s only considering additions. The compiler can also manipulate the output with substitutions and subtractions as well. How does Scrivener know those first three words in the chapter were converted to uppercase by the compiler, not the typist? What about all of those auto-numbering and meta-data placeholders now turned into static text? What happens to your comments and inline annotations if you did not compile with them enabled? What about any use at all of the Replacements option pane? There will only be more questions such as these as time goes by and Scrivener evolves, adding new ways for the compiler to generate output: custom meta-data, the ability to <$include> text from one item into another, etc.
In short: compile is just that… compiling. It’s a small bit like compiling software from source code: you can maybe, in the best and simplest of cases, get back to some semblance of source code using a decompiler (common in reverse engineering), but you will never get the original source used to create the software from the .exe itself. Compiling in both cases is a destructive (though beneficial) process.
So something like this would only work in the most dirt-simple cases, where one is hardly even using Scrivener’s features to their advantage. All chapter titles and headings typed into the editor, with every number manually typed in, all formatting already set in the editor. No scene-by-scene files—you get the picture: we’re starting to describe a Word file. 
Jumping back to the top of my response: I mentioned a feature called folder sync, have you had a look at that one? It’s the File ▸ Sync ▸ with External Folder
menu command, and it is designed to export a folder full of files that can be edited in other programs. Later on when you load the project it will check this folder for modified files and automatically inject the text back into each binder item where it came from. It was originally designed for people to work mobile—but it works just as well for collaboration.
The sync folder itself can be tossed into a cloud share folder that your editor has access to, and now you’ve got a central editing area that your project stays in sync with and keeps up to date with your own changes automatically.
The downside of course is that your editor is now working in 91 files instead of one—not everyone would be amenable to that, but if you provide a compiled copy to them as well they could use that for reading and make edits to the corresponding files as they go.
Lastly of course there is getting them to use Scrivener.
Yeah, neither option is something many editors may jump on, I am aware, but really—there is no coming back from a compiled file without necessary data loss to the extent that import & split really probably is the best way to handle it in the end (it would take a human mind to solve many of the above problems anyway); or as many do, call the point where things transition into editing the point where you conclude work in Scrivener for that project.