bigotry.
Cincinnati is going to get the G5 bid to the NY6 bowl games no matter what. There is no incentive to drop them. BYU getting a spot takes one from someone else. Almost every member of that committee is associated with institutions that have $omething to potentially lose if BYU takes one of those spots.
We also don't get any benefit of a conference "mate" voting us higher so we'll look better when they play us (win or lose).