Regardless of whether or not the 10 team conference championship game is approved, it is not as appealing as in a 12 team conference. The fewer the members, the more apt the championship game will be a regular season re-match. The SEC has had a couple of re-matches, and when it happens, a bit of the luster is diminished unless the earlier game was tight and involved the higher profile schools.
The other possibility with a ten team conference having a championship game, would be scheduling more out-of-conference games, rather than more of a round-robin type or eight conference games per regular season. It seems the larger conferences are using "8" conference games for the regular season as the norm.
Agreed. The NCAA will not approve less than 12 teams the ACC needs to get busy and Big East'ed some other conference.