This is such a bad take man... The only consistently bad teams in the Big 12 in recent history have been Iowa State and Kansas. We are now not bad anymore, we are good. Texas, Oklahoma, OSU, TCU, and WVU are all solid almost every single year, OU obviously being the best out of the bunch. Baylor and KSU have been very successful in the past 10 years, with Baylor being very poor for one year.
The Big 10 West has been one of the worst sides of a conference in all of college football. That's inherently why Iowa was talked about being the fake ID of CFB, because the schedule was a cake walk.