I honestly believe this slows down the pace of conference realignment.
Conference affiliation plays a much smaller role with a committee picking the 4 best teams, even if conference championship is one of the criteria.
That puts less pressure on ND, Big East, ACC etc teams who may have been panicked or trying to get into a superconference.
I honestly think the Big 10 has done the best in conference realignment, and the Pac-12 isn't far behind. Neither has changed the essential character of their leagues or diluted the quality (or diluted it by much, in the case of the Pac12.) I think the SEC diluted their brand, the ACC is a mess, and the Big 12 is a bit worse off...
here's my bold and completely unsubstantiated guess at how the rest of the process plays out.
Big 12 grabs Florida State and one other team from the ACC, plus West Virginia and TCU makes 12, back into the championship game format.
The ACC is now back at 12, the Big 10 is winning, the Pac-12 is obviously at 12, the Big 12 is at 12, and the only leagues that I see as unstable are now the Big East and counter-intuitively the SEC. So we're all set up for another round of this shenanigans in 5-10 years when Bama, Florida, LSU and the other big boys realize they could be like Texas, Oklahoma and Nebraska and try to demand dramatically unequal revenue sharing. Thus, the SEC meets its end...
Or maybe thats just what I wish would happen.