Honestly, I think there is more low-hanging fruit in the PAC than the B12 so you have a much better argument.
Iowa State has done a great job the last 3 years
Baylor has recovered
TCU has struggled but has been good enough in recent years to be respected
Kansas gets a pass because of basketball and they just won a natty
Kansas State is probably the least attractive at this point but no one hates KSU
You just added BYU, Cincinnati (world beaters baby) and UCF which all have some recent great years. Overall without USC and UCLA the Big 12 is a better league top to bottom.
Nobody has any respect for Oregon State or Washington State and Berkely is so weird I don't see how anyone like them.
The two biggest things in your favor are this would put the Holy War (Utah vs BYU) in the same conference and it gives the Arizona schools much more exposure in Texas for recruiting which they have craved.
I think you see Utah, AZ, ASU and Colorado all bolt in the next two weeks. Once that happens the PAC is done with no shot of recovery.