I think the be eligible for the playoff you should have to follow some rules:
1- at least 10 P5 games not counting you conf champ game.
2- no bye/FCS/G5 teams after the second week of October.
That equalizes the schedule for everyone. And solves the weak ass Alabama schedules every year. And doesn’t penalize the PAC-12 and Big 12 and Big 10 for 9 conf games.