My source, who is quite conservative, said it had nothing to do with the church or prop 8. It was business-driven and those two points were vitally important to the conference. They were not going to provide a workaround for one school with basketball and the minor sports. He said their respect for BYU was strong and unanimous and wished it could've worked. Sure, you can say that's a convenient fallback for him to say, but keep in mind, this was never said to the media. The Pac-10 or any of the schools ever publicly acknowledged looking into the possibility of adding BYU. It's the same principle as not bringing up old girlfriends if you've found the woman you want to marry. You drop any talk of them (if you're smart) and your choice becomes the only one ever considered.