So, for those proposing an 8 team playoff...who would you have in that mix? Would Michigan State have been part of your selection? Their only two losses were to Ohio State and Oregon who will be playing in the national championship next week. They could wind up to be the best 2 loss team in the county and not have been selected for the 8 team playoff. My point is someone is always going to get the shaft whether it a 4 game or 8 game playoff. Life is never fair. If you want to be one of those 4 teams, you have to beat one of the big boys and be somewhat lucky. Sorry, JMO.
What I like about an eight team playoff is all five major conference winners could be in. Then there's room for three teams who might have come in second but been better than another conference winner.
I believe this year will be determined to be unique. In most season fans would likely look at the #4 team and argue they don't fit with the other three. But as you say #5 would be crying they got screwed. Hell, #69 in basketball complains.