Not sure why y'all are comparing FCS to G5.
The comparison here is moving to a 9-game conference schedule and replacing the FCS cupcake bodybag game, with another conference game.
I suppose what you're suggesting is that even with a move to a 9-game conference schedule, the SEC teams still won't get rid of the FCS cupcake bodybag game. Rather, they'll sacrifice some other OOC game that would have been G5 or P5.
And I guess that is about all that needs to be said about that.