It's such a weird thing with Texas and OU fans. Why are you shitting on the conference that has been your home for so long, has bent over backwards for you and none of the remaining schools did anything to you other than beat your ass on the field the last decade plus if you are Texas?
Missouri fans did it because they were getting out from Texas' shadow and all of the crap the Longhorns did while everyone original was in the league. A&M was the same thing, so I get that, as it was a chant to stick it to Texas.
But chanting "S-E-C!" at the Big 12 Championship Game for Texas and OU would be very weird. Nobody left is Nebraska of old or A&M. Texas fans will let Yormark hear it for sure. Just a strange thing, as teams like Kansas State, Iowa State, WVU, Oklahoma State, etc. have been nothing but phenomenal conference mates since the Big 12 was created from all accounts.
I could buy this argument if the league office wasn't actively anti Texas/OU.
I think the league has every right to give Texas and OU the proverbial bird on their way out of the door, but when you do it you don't then get to complain when they do it back.