Even in my initial setup with 3 Texas schools together it's unlikely to keep any schools away from Texas.

Imagine a 6 year setup

That means the only time a team wouldn't be playing at a Texas team would be in a year that they are missing the South pod and playing their 9th game at home.  And even then half of those teams would still play @Texas Tech (who is in the West). So once every 12 years a team from outside that pod wouldn't play a conference game in Texas. I'd argue that's so infrequent as to not matter, and that if it is a big deal, teams could work in advance to schedule away games with Texas, Texas A&M or SMU (or even lesser ones like UTSA or Rice) in those rare year

With your modification to update pods as:

West: BYU, Oklahoma St, Texas Tech
North: Kansas, Kansas St, TCU
South: Baylor, Houston, UCF
East: Iowa St, Cincy, WVU

it might actually mean more years without playing at a Texas team - since there's a chance they'd match up in the UCF in the South 9th game. Could be remedied by clever scheduling to ensure those that got Tech at home got TCU on the road though, but it would also be less predictable since you wouldn't know in advance which teams will get a Texas team out of the South and which would get UCF