They can, your conference can change back if they want.
Which would be fine with me. Your conference can increase to 9 if they want. I really don't care which one happens.
Rather than being like - hey college football, we did a really stupid thing. Can you guys come do it with us so we can look like pioneers rather than dumbfucks?
If it were only the PAC-12 playing 9 conference games, you might have a point.
If it were only PAC-12 fans saying that all conferences should have the same number of games, you might have a point.
But it's not, so you don't.