I'd usually say it'd be far fetched

but I can totally see Google banning developers and removing their apps for political reasons, where some lobbying group bombs them with emails

because with this they're explicitly saying they're now choosing who gets to be in or out, there's no way for them to say we can't do anything about it

I do think this would improve security, but I also think it's sort of a Trojan horse to lock down the ecosystem