What if you are wrong and the former Father Bennett is right?
It doesn't really matter much if I'm right or wrong. What matters is if "the pillar and bulwark of the truth" is right or not. And per the words of Christ, it is. And if it wasn't, then that would mean (God forbid) Christ is a liar about one point. And if a liar about one point than who can trust anything else?
If we can't trust all the words of Christ then we would be in the situation described by St Paul: "If in this life only we have hope in Christ, we are of all men most miserable."
So, given a choice between standing with Christ and the Church He personally founded and the Church that has Him as its head, that "pillar and bulwark of the truth" (as St Paul described it) or to stand with some malcontent whose mission it is to draw people away from that church, I think the choice is fairly obvious from a risk management point of view.