B12 is not going to fix all your pains, refs are still going to annoy you, and BYU won't always put their best product on the court. I am stoked about playing games at home against Kansas, Texas Tech, Houston etc., but it will create its own challenges.
How will you feel if BYU turns in a 5-11 record in the B12? It isn't out of the question. BYU has a bad season that is quite possible. If they are having a great year, they may still lose 6 games in conference because it is that tough of a league.