I still think people hated Eric because he made Max look like a pathetic little gimp. If BB had been viewed from Eric's perspective, it would have likely been far more successful. Max would've been the antagonist of the story, and you'd get to put the little weasel in his place. NGL I hope that someone does the game from his PoV at least once, cause I think it would be funny as hell to deliberately cuck Max, knowing he's watching and get the option to give him the bird, whilst you're nailing Ann, etc.
But I don't really get the whole NTR issue, I play these games for fun, not because I treat the MC as myself... kinda find the whole thing weird myself. NTR people are the type who probably feel like they exist, because their dads cucked them by making them.