I agree, I think 8 would've been perfect. Hopefully they won't expand past 12.
My original point was Playoff blowouts were not a new phenomenon due to the expansion to 12
8 would've been good. Get the major conference champs in. Get a G5 in. Then 3 at-large.
I do think 4 was adequate. I think expansion was a panic move because it "felt" like it wasn't really expanding opportunity. The same teams kept making it, and expansion would encourage more good OOC games. With 12 teams, it should lead to some parity.
No idea if that will result, but the well has been poisoned I think. Saban retiring, Clemson started falling off, etc. Parity was coming anyway.
Also, idk if the G5 really should get a spot guaranteed. The best G5 schools have all become at least nominally P4 schools other than Boise. Houston, TCU, Utah, Cincinnati, etc. A 12 team playoff would have been super fun during the BCS era. There were several awesome G5 teams back in the 00's and you could probably count on at least one of them "belonging."
Now, the G5 is basically indistinguishable from FCS. North and South Dakota State played an awesome game today. High quality football! But that level of football belongs nowhere near the college football playoff. Both of them would have a better shot at beating Boise than Boise does at beating Penn State.