It's message boards and Twitter, but they're like lock step in unison in denigrating the Big 12 as something beneath them. It's not a couple fans, it's nearly every single one with an online presence.
I think Utah's a very good program on the field. That doesn't have fuck all to do with anything in realignment. The Big 12 is such a massive upgrade from going down with the Pac 12 ship, and they act like it's a lesser choice. They are explicit that they don't think they should have to associate with schools like us. Not football programs - schools, fanbases, humans. The people of the Plains/Midwest are inferior humans.
Again, it's message board silliness, but it seems like a definite feature of their collective culture, and I'm glad to have a fanbase or two that thinks like this. Arizona fans are excited about joining the Big 12. The 4 schools that called up are excited about joining the Big 12. Colorado fans are a bit like Utah, but there's a lot more enthusiasm. Utah would rather be in a reconstituted Pac/MWC. That's not a reason to not add a valuable program, but it is a reason to view their fans as heels in the new arrangement.