It's a numbers game, there are 12 slots, 4 go to the conference champions, the G5 schools get one, if ND goes undefeated the rest of the way that will leave 8 open spots, 9 if they do not.
So the B10 has OSU, Michigan, Indiana, Penn State, and Oregon for those spots, the SEC has UT, OU, Alabama, Georgia and Miss. St for their spots and the ACC has Miami and FSU for theirs. Every team on that list has a higher profile than any team from the B12. Its going to take a small miracle for the B12 to ever get more than one spot, meaning that we have to have two teams that have one loss and the B10 and SEC have multiple teams with two or more, plus only one team out of the ACC.
The first year of the playoff, only taking four teams, Baylor and TCU had 1 loss each, and we did not get a team in, what makes anyone think it will be any different now when they are at 12 teams? The B12 will always be a one bid league without the before mention miracle and it's why if they move to 16 teams we need to push for the 2 bid proposal.