The Hunter content, to me, isn't even "real" NTR. It's too comical and non-serious to cause negative emotions NTR fans seem to enjoy. Jealousy. Anger.
It'd make more sense as the "beauty & the beast" style fetish. Where a woman gets banged by a guy who is heinously ugly, like Hunter is.
That said, hardly any games manage to have NTR and Non-NTR content and work. They always end up favoring one or the other. This one has, up until this point, because the NTR "route" doesn't actually exist. It's there for the humor of it as I said above. The "What If" series is basically a reward for those people who like that content though.
However, issues will arise if the "What If" NTR fans start to be favored over the non-NTR fans of the vanilla game. If making the "What ifs" cause delay to the main game, people won't be happy about it.
So, if I were the dev, I'd have veto power and rotate the vanilla "What If's" and the NTR ones regardless of the polls. The NTR fans may be the majority of the higher tier patrons, but that doesn't mean the vanilla higher tiers should be overruled on all the polls. The NTR fans get a little NTR in the vanilla game, so the vanilla fans should get a vanilla "What if" too every so often which won't happen if the NTR fans have the voting majority.