I don't have anything against this game but quite a bit of games were removed a while ago for not having a straight up sexual content even though they were erotic in nature and yet this one is posted which makes me wonder if the previously removed games would be allowed again or is this just a case of cherry-picking.
I don't think it's either. I think that any and all changes to rules take a long time to become culture and norm. Some people disagree with the change, some don't know about it, and some simply don't care. You don't make one single choice and then the future helpfully conforms to your wishes.
I very much doubt that there is some sinister cabal working behind the scenes to allow some games while excluding others. Change takes time before it sticks, and some times it doesn't stick at all. If you want it to stick, report the post and move on with your day. If you don't care, then just do the latter.