Even if it does, it should still be Suggestive as the Pornographic tag is for when the manga explicitly shows them doing it while Erotica either hints to it or censors it
That is untrue.
Safe is safe,from sexy things,blood n' gore are not welded to this aspect.
Suggestive is for nudity,including nipples being shown,but not beyond that.
Erotica is for sexual acts where you can't see the gonads at all but they're getting it on like Donkey Kong.
Pornographic is for eiher full blow nudity(you can see everything thanks to the updated older chapters)or actual sex being shown,regardless how small the black box is or how utterly massive the white out is.
When you see so many comics which are just getting posted to Mangadex flip flop between designations,this becomes clear to you.