I don't think they've censored any below CERO D, they are targeting games that would have or did receive CERO D (17+) and CERO Z (18+) ratings and forcing additional changes. It's senseless, even Nintendo, who was awful about censoring games last gen, is allowing many of these same games on Switch unaltered.
I agree that it's kinda nonsense to make it hard for those CERO D+ games, but I still think that Sony will only censor a bunch of silly small ecchi games that in the end it'll make no difference. Those games must make a very small percentage for Sony but every time they showed up, they make bad press. It's bad for the devs though, but this sort of content fits PC better.
Japanese are obsessed about underage girl hentai and it doesn't fit in the West at all. If Sony wants to be more like a western company, like Microsoft, Apple or Google. Can a dev upload this sort of game to Apple Store? I don't know, really, I suppose not. So I guess it's not a bad move to get away from this sort of filthy little content. It's shocking for most people to see "cartoon kids" that way, even when it's rated mature.
When PS4 will hit 100m consoles sold: Before Christmas 2019
There were three ravens sat on a tree / They were as blacke as they might be / The one of them said to his mate, Where shall we our breakfast take?