Yes. You've got to understand the Big 12.
You've got former Big 8 members that used to travel 5k-15k strong to go to games at KU, KSU, NU, ISU, MU, OU, OSU and CU. Same thing for the former SWC members who did that among UT, aTm, TTU, BU, TCU, SMU, UH, Arkansas and Rice. Regional, low-cost road trips that fans could drive. That was the culture. The only thing holding the Big 12 together right now is that the Texas and Oklahoma schools are trying to hold onto that regionality with OU and UT being the key to everything (the rest of the conference doesn't really matter in terms of what they want, but KU, KSU and ISU like the drive trips).
fyi - It was the bullying and drama from the Texas schools and their Oklahoma lieges that caused NU and MU to leave. CU never really fit that culture and needed to leave for a better fit. aTm was sick of playing second fiddle to UT.
Anyway, their fans won't fly to Provo and they know it would be a problem.