In 12 & 14 team conferences, why should teams look outside their conference for a required 2nd P5 game? The can just as easily keep the money in conference. If a team like OU wants to load up their non-con schedule, they can still do so. OU is playing nine Big12 games plus Houston and Ohio State.
12 teams playing 9 conference games: 54 games
12 teams playing 1 Power 5 non-con game, half at home/under control: 6 games
Total: 60 games
12 teams playing 8 conference games: 48 games
12 teams playing 2 Power 5 non-con games, half at home/under control: 12 games
Total: 60 games
The narrative that more conference games = more money is just wrong. The second option above would probably print more money for the Big 12 because the networks could curate those non-con games and get exactly what they want. Like I posted earlier, FOX and ESPN could help Oklahoma and Texas schedule Alabama and USC while they could make sure FS1 and ESPNU inventory was the Iowa State vs. Wake Forest, Kansas State vs. Oregon State type of game. And the same number of games are in the conference media rights.