Because it's not original license owner. They would have to provide licenses for everything used plus Apple may reject it just based on "not matching app guidelines". Apple banned even console emulators even tho technically there's nothing legally wrong with emulator on it's own, same for torrent downloaders, Kodi etc. If Apple have any doubts about legality of app they'll just ban it
>They would have to provide licenses for everything used
I said "provided it used properly licensed assets". Apple has accepted compiled open source projects before, even from people other than the authors e.g. OpenTTD[0].
>Apple may reject it just based on "not matching app guidelines".
We all know Apple might reject an app for any reason it wishes. This is a poor answer to support a claim that it wouldn't want this specific app.
>Apple banned even console emulators even tho technically there's nothing legally wrong with emulator
Emulators where you add game images yourself were always forbidden.
"2.5.2 Apps […] may not download, install, or execute code which introduces or changes features or functionality of the app"[1]
