Are you saying all the games you tried also exit when you log out of Xbox live? I don't know why I would have gotten flagged for this then, I am handling the loggout correctly on Windows 10. Though I did have some issues surrounding my certification process, so there's a chance this got flagged even though it shouldn't have.
As far as documents, do you have access to https://developer.xboxlive.com/ ? If so just go there and go to Certification -> Xbox Requirements
Frankly it seems like the addition of UWP has made a mess of things. The documentation through the Windows Dev Center is minimal at best, I've had a very challenging time navigating the development process.