We might have a first this year with an undefeated P5 team, Florida State, getting left out. Alabama, Texas and Georgia may all be better than FSU without their #1 QB. The committee might see FSU is one dimensional now with only defense and not good enough to compete for a championship - only 219 yards of offense yesterday and 232 the week before versus Florida! The committee does not want a team in the playoff that can’t compete for the Championship, and maybe get walloped instead - it is their responsibility.
I too don’t think you can have this CFP without an SEC team - and one-loss SEC Champ Alabama just defeated #1 Georgia!!! And then it is difficult to leave Texas out - it was only the second game of the season, but Texas did soundly beat Alabama in Tuscaloosa.
Michigan
Washington
Alabama
Texas