NTR as a term has been used, abused, misused, and basically imposed on forums like this one by people who hate sharing, not by people who don't mind it, or eventually enjoy it, once it's there.
Sure, there are games where the main focus is cuckholding, humiliation, etc, but it never was the case here in BB. Max was never tied up and forced to watch by Eric, nor do the female characters laugh at him while having sex with Eric (only in some fan art).
Anti-NTR people must admit that for the last decades of its existence, porn supposes women sleep with several men. Sure, we're talking about a game, but please, don't think anyone who doesn't mind NTR is actively seeking it, demands it, puts up a hysterical fit if there isn't enough of it. We just don't give a damn who women sleep with, as long as it's well filmed, drawn, or rendered.
The real issue is whether you want to be emotionally involed in a porn game or not. Those who don't mind NTR, and eventually find it exciting and fun that women sleep around in a porn story are people who simply aren't here to become emotionally involved in what remains relatively stupid porn stories, but basically just have a nice toss.