I think you are right. More than 12 hours or so now. It should not take this long for the AI to scan and approve the app - it never has before.
Maybe some goofball submitted a debug or development build without security in place and it was rejected, or a goofball realized they submitted the wrong build and pulled it once they got home. Silly, ain't it, ;(
It did give me an excuse to exoeriment with BlueStacks though, and it works. It sure melts through CPU and battery on this 2017 MacBook Pro for some reason though.