Can't completely rule out Cincy or UCF getting a spot over BYU, but this would be great for anyone wanting to get in.
Think of it this way. If 2 of the 10 teams are going to get a 1.5 share, that means the other 8 teams all have to only get 87.5% of the share. If instead it's 2 of 12 (or even 14 teams) that means each of those other teams can get 90% (or even 91.7%).
And it can be even more than that if some of those teams are "new" teams who don't get a full share for the first 5 or 6 years.
Plus Texas staying would effectively remove one competitor for expansion (no way Houston comes in while Texas still runs the league).
The only thing that could be better would be Texas and Oklahoma staying (keeps conference relevant), getting an increased share (makes it useful for other schools to split that cost as outlined above) and West Virginia leaving after coming to a deal with ACC as a result of the uncertainty (makes it much easier to expand west and makes expansion a must without losing a top team)