I would not go so far as to say that on the whole it is troublesome, and many of the concerns I raised above are simply not that important to everyone. But they may be to some, and among those there may be those who didn’t realise Web Archive actually isn’t very secure at all and can even fail to render properly when fully disconnected from the ’net, which for them might defeat the purpose.
Situationally, long-term archival may not be something that matters to you—the convenience of having a quasi-offline article for a project that isn’t going to be opened ever again after you publish in three months is probably greater than any librarian level memorial to the resource. Likewise there may be those that really don’t care if Google is constantly crooning “I’ll be watching you…” into their ear as they go through the day. Some people even use Android phones for that matter.
It’s less our place to police what people can do, is what I’m getting at. I’m more a fan of leaving the options open, because we cannot anticipate what everyone wants or needs of a tool, than to say that because I personally would avoid this tool, everyone else should too. For myself, I prefer long-term “memorial” archives—so I use text. Civilisation will have to collapse before I lose access to that data.
My point above is better stated as such: it is moments like this when some single-point tech fails that we should question whether or not that’s the best tool for something that needs be reliable. It’s a response to those who find themselves in a snarl with no backup plan (though as I point out, I think they have better options than they think they do). And to be clear, sometimes it still is the best answer, even with a single point failure. In this case, even though the viewer is offline, the data is still accessible, as demonstrated by the continued functioning of the conversion to text feature.
On the matter of Evernote, I don’t use it, so I’m not entirely sure what all the web clipper is or does, but it sounds like it is doing something similar to Web Archive? I don’t so much have a natural distrust of this general concept. There are formats and tools that actually do full downloads where you will not be sending out pings to advertisers and no part of the page will be missing that you might have depended upon. These formats tend not to be as “convenient” however—they are usually thought of more as site clones, where you end up with whole directories of files on your drive—basically a copy of every part of the website necessary to display the page, from the scripts to the fonts to the stylesheets to the content. Something like that would not represent as well, or as simply, in the Binder I suspect.
Regarding Evernote pages in .webarchives though—not sure if that is what you’re asking about, but I’d try turning off your WiFi antenna, or unplugging the ethernet, and seeing if you can access the notebook you saved into the binder. It’s been several years since I’ve seen anyone mention doing that, but I recall back then the content itself wasn’t archived, only the container around it. You had to be online to view the content—which meant it wasn’t really an archive in the snapshot sense of the term. If the notebook was deleted or mangled online, you’d lose the data in Scrivener too. So if it is your intention for this thing to be a secure backup, I’d make sure it actually is.