The piece of code to keep the screen turned on is my guess of the app's deletion. The re-uploading the app (since they asked me to send a new compliant version of the app) was what I think was the cause of my account's closure.
I realize you didn’t find anything else that looked like it crossed stuff up, but I’d bet money the bot was looking at something entirely different.
For one, looking at the API docs for SleepTimeout doesn’t suggest it changes the saved OS-level user settings. It’s just a screen keep-awake like many games use without permission. And for another, I’m pretty sure for minor stuff that can be easily remedied they don’t nuke your app listing to the ground so you can’t remedy it.
Even the bit where they nuked your entire account on reupload implies a pretty good chance that whatever was offending the scan was still in there. I doubt they insta-ban everyone who uploads a similar app again unless it somehow registers as evasion.
That bot was almost certainly identifying your app as a scam—or you as a scammer—for some other reason. It’s possibly not even one that would make sense to you. That’s the problem with bots. But I just really doubt it’s for the reason you’re guessing.