I don't think that was a very deep look at the app, especially since you have to know how to use a Linux prompt to understand that this app is an emulator.
I doubt it was, but my headcanon is that some poor App Store reviewer saw something that looked like code and grabbed a supervisor to do a deeper review.
https://www.urbandictionary.com/define.php?term=Headcanon
An idea, belief, or aspect of a story that is not mentioned in the media itself, but is accepted by either the media consumer themselves or the fandom in general. If it is confirmed by the creator of the story, it becomes canon.