I dislike ntr(no shame, aint my thang) as well but Maya isn't romantically involved with the protagonist but I think people are upset if she has sex with anyone aside from him? I think the upset people can't fathom the idea of fictional girls having sex with anyone other than the protagonist i.e the player. If they game really made them unhappy, just don't play it instead of berating the dev for not fulfilling their unrealistic fantasy.