Remember when a Big XII team missed a playoff because of perception.
Look, pulling for your conference team mates to do well against other conferences in the CFP is simple self preservation. Having any positive bias in media view is a bonus. There is a shit ton of subjectivity in the CFP process. Do you remember all the fans here yelling about how we should be #5... and we were. Well, it sure as shit doesn't if we played in the Big XII. Just ask Iowa State.
Actively hoping your conference loses is self sabotage. It hurts Texas in the long run when SEC teams lose in bowls and the CFP. 4 ACC teams made it in. That's due to a goofy media bias. I'm not preaching go full SECSECSEC. Just, ya know, pull for things that are good for Texas long term.
That this reality is lost on Texas fans after being in the Big XII is flat out amazing. Particularly when it lands them pulling for OSU. Ohio fucking State University.
That is flat out regarded.