I'm confused.
MU is fickle if they don't want to add those schools, yet you admit those additions don't help the conference and would be spreading ourselves thin.
If MU has an SEC landing spot (and I do still believe the SEC would take MU if MU wanted out), why would they accept a watered down Big 12?
Why should the Big 12 prop up mid-majors to survive? Why should a program like MU that has relied on the 2nd tier of Texas talent agree to adding mid-majors in Texas?
BYU is a quality program. Houston, SMU, UCF... not so much. I don't care if they should have been included 15 years ago instead of Baylor. Reality is they weren't, and their programs have suffered accordingly. They don't deserve it now.
The Big 12 will survive in some fashion as long as UT and OU are in it. At this point it looks like MU may be the only other Big 12 school with alternative BCS options, and a lot of people at the school and throughout the state would rather be in a conference where they feel there's an element of mutual trust and respect, and not a conference where members feel "handcuffed" to each other.
For whatever it's worth, my opinion is that a 10-team Big 12 was fine. If BYU takes A&M's spot, that would be acceptable. Adding anyone else makes zero sense and turns the Big 12 into a conference I'm less inclined to want to be in. I don't see who benefits from that other than the mid-majors that gain BCS status. Everyone else loses.