It's not truly going to be fixed until a) Saban retires/quits and/or b) there is some mechanism beyond just recruiting (and everything that means) to get kids to go to certain schools. College (all college sports really) is just so head coach success driven vs like, the NFL, where most talent is obv done via the draft, and trades, waivers, etc allow teams to supplement over time. While it can obviously be messed up by GMs and the front office, you at least know that come next year if you had a shitty year you got the first crack at the best guys next year.
I am a staunch believer in the whole 8 team (5 P5 confy champs, 1 top G5, and 2 at larges) to make it more interesting (and fair) but that still won't fix the Alabama "problem". They'd still get in, run all over most teams, and while it'd be better cause hey, more teams technically have that shot, it won't happen that often.
Dynasties rise and fall, and quite honestly we kind of live in a very unipolar age where it's basically Alabama, sometimes Clemson, rarely tOSU, and then a few powers in a conference that get in and that's it. I'm sure in the 60s/70s it would've felt very similar with UCLA and Wooden doing that in basketball (or NDSU down in FCS now), and now UCLA is basically irrelevant in most seasons of the game, it happens.
Other examples would be like UConn in women's basketball, Penn St on volleyball, etc. Heck, Tennessee women's basketball used to be basically the Clemson to UConn's Bama and after Pat Summit passed now look at them, also basically irrelevant, or at least no where near the success when Pat was there.
I think Saban will ultimately go down as an often imitated, rarely achieved level of success that I think will be very very hard for other schools to lock in. When he exists the stage many more teams will rise and fill the gap.
I do agree it seems like the CFP playoff seems kinda irrelevant, a party for only certain types. I don't think I've watched a down in nearly 3 years of any playoff game.