be equivalently considered with championships from other conferences with more teams in the hunt.

I wouldn't think that the SEC and B10 would be okay with the B12 having a conf championship based on fewer teams than they consider, but I can also think that they wouldn't be interested in legislating a requirement about numbers of teams anyway. First steps first - require a championship game from opposing divisions, and then whine about how many quality teams are in each division. Step by step.