Oh, you mean how it uses a straight outline on import, instead of indulging in the oddity that is “folder” vs “file”. 
I think technically it’s supposed to do otherwise.
I’ve always turned off the features that make any distinction between the two,[1] as it never made sense to me have a “folder” in an outliner, where everything that is within an outline is premised upon the concept of branching off of some central thing, and any thing can be branched off upon likewise.
Anyway, that’s one aspect of Scrivener that always left me bemused. I choose to largely ignore it, as to me it makes life so much easier.
Behaviors: Folders & Files: Treat all documents with subdocuments as folders. ↩︎