A lot of personalities say it. Nothing is perfect but you don't get stories like IU, ASU, Colorado, Vandy beating Bama and being bowl eligible and competitive, TCU a couple years ago etc..without these changes. Dillingham is in the middle of a playoff run and told his players that want to go in the portal to do it now don't wait and supports finding them a new home but they're going to be around for the playoff run. It's usually the old guard who don't like change or people who want to keep their grasp on power that complain. Frankly there's just a "woe is me" attitude that pervades things just in general anyway.
Not only are you getting teams lower down the totem pole having their moments in the sun and being able to make quick turnarounds but you're also seeing that it's harder to create super teams because talent is spread around much more now than before. Everyone is flawed. Kirby Smart made comments that the talent around most important position on the team, the qb, is spread out more and that's helped a lot with parity. This year it's hard to predict with certainty who will win the playoff. It's as wide open as it's ever been and even the teams that don't have a chance to win it all still probably have a decent chance to burst someone's bubble and snag a win.
These are all good things for CFB.