Yep. In some ways, it would be even easier than the Big East dismantling. UT and OU are programs that any Power 5 conference would love to secure. The rumor mill sell on those two is way easier than team from the former Big East. And without those two, the Big 12 "Power" status starts to fall apart.
That's why I'm not Big12 or Bust. Would I like to join the Big 12 over AAC? Definitely. Do I think we need to do EVERYTHING in our power to do so? If there is ever a chance for us to join the ACC, that's a more solid future, for sure. I can still see a time 5 years down the line where 4 mega-conferences destroy the Big 12.