It comes down to a question of value. I personally don’t see much media value in what is available. TCU does not bring the DFW media market. That media market belongs to Texas and aTm. KU is the only instiution that meets the academic profile but they are clearly located in the Big 10 footprint and football is FCS level.
Honestly the “in state” team brings more media value nationally than any of the leftover 8. Expansion for the sake of expansion is the ultimate reactionary move and would harm more than it would help right now.