I understand why people want 8 team playoffs, but I really think it's unnecessary. There are not 8 teams that could realistically compete for the championship. I think Cinderella's aren't as likely in football as they are in basketball.
Georgia and Wisconsin would have both qualified for an 8 team playoff. Georgia got absolutely pumped by LSU. Wisconsin held tight with OSU, but got outscored 27-0 in the second half (not to mention losing 38-7 in the first go around). Wisky would have had no shot against the 1 seed LSU.
Idk, if Iowa were in contention I would always want to give them a punchers chance in a playoff. But as an outside observer, 4 is just fine.