It. All 4 are in better situations. Some could question Colorado, but the SEC schools are happy. Nebraska is in a program identity crisis, but they're better off in the B1G.
The Big 12 will do what the MWC did, expand too late and lose its power members to the other conferences. Texas may sink that while conference too. Making the most money, putting out the worst product, happy with current cash flow.
Had the MWC conference expanded to 12 earlier and kept Utah, BYU, TCU, and Boise that would have been a strong conference. Still might have been pilliged in the end, but the Big 12 simply refuses to adapt.