Jeez get over it, people. Lower divisions (and EVERY OTHER TEAM SPORT in the NCAA essentially) have had playoffs of 16 teams and more for decades. This finally shuts up the "they get voted on, it's a beauty contest" people and their split champions, who were followed by the "wah, why are there only 2 teams? we were undefeated" people, who were then followed by the "wah, why does the SEC get two of the four spots?" people....now, if you're #13 and don't get it in -- face it buddy, you didn't earn a spot.
Don't worry, there will still be 25 bowls no one cares about except for the teams in them. Just like now!
In the 90s, when the Rose Bowl held the Big 10 and Pac 10 out of an early attempt at a championship game, we in the Usenet college football forum used to refer to the Rose Bowl as the IYB, which stood for "Irrelevant Yawner Bowl"... Pasadena you had a whole century in the sun(set), times change. Change is good.