The ACC's motivation for taking Pitt and Syracuse was two fold and bears no relationship to the present proposed B12 expansion. The ACC was desperate to destroy the Big East, a competitor BCS level conference, and to solidify their conference from potential defectors. The marriage was also apparently blessed by the money folks at ESPN.
The B12 has no motivation to destroy the AAC by ripping it apart because it's absolutely no threat to them. You can't be threatened by the existence of any G5 conference if you're a P5, considering you're already making 10 times or more revenue per team than they are. And while at first blush it might seem that solidifying the B12 is the only motivating factor, that might be true among the schools not named
UT or Oklahoma, but the idea that the conference will automatically dissolve in eight years is way overblown. Where's UT going that they can take their beloved LHN with them? They also have no interest in joining another conference where they play second fiddle to other schools that control the league. Their only other choice is to go independent, but that presents a whole batch of other problems. They're likely going nowhere. As for OU, they likely have to take OK State with them wherever they go, for political reasons, so it's likely that the B12 stays in tact eight years from now, even if they do nothing now.
I get why UConn fans would like to believe this has to do with factors other than football because that's our weakest metric at present against at least a few of the other top candidates. Right now it's readily apparent that the B12 presidents are making a big show of pretending that academics matter by keeping Rice, Tulane and SMU in the mix, but is there anyone who seriously believes they will pick any of these three schools? They're window dressing.
Maybe the B12 presidents will surprise and look at football on a longer term basis than just the past couple of seasons. Maybe they'll look back to UConn being a competitive program in a BCS conference with a lot of potential given that opportunity again. But it's still about football, not men's soccer titles. The bottom line is whether there are 8 of 10 of them that will be able to see the upside potential UConn brings. It's definitely there, it just has to be recognized by enough of them to put us over the top, if they vote to expand.