I don't disagree with anything you wrote here.I know you asked someone else, but I'm not upset when lesser teams make the Super Bowl. However, I also don't point to the seasons where the best two teams play each other in the Super Bowl as proof that system isn't correct.
Once you build a playoff, the best case scenario, IMO, is to eventually have the best teams battle it out for the championship. This year, I actually think it worked perfectly. We keep hearing about how the UCF's/Boise's of the world just needed their shot, and Cinci looked pretty overmatched against Alabama. It was also a year where Michigan looked like they might belong and we found out pretty quickly that they did not.
Georgia sure looked like the best team all year and they lost to Alabama in another relatively modern invention (conference championship game). Those conference championship games do devalue the regular season games a bit.
What I meant is: the NFL "could" just take those 14 teams into a single bracket, seeding the top 8 division winners perhaps, or some other way. But they purposefully have two separate brackets that feed into the championship.
This prevents something like the Rams vs the 49ers as the Super Bowl. And yes I realize that's probably a silly example, as there was a Super Bowl back in the Steve Young/Junior Seau days of the 9ers vs Chargers.
But college football conference are much more exclusive in geography. So you could rig it up with PAC/Big Ten/Big XII teams on one side, and SEC/ACC teams on the other side, or something like this. Likely won't happen, and maybe it would be a terrible idea. Just saying.
I think it's a big turn off to a lot of casual fans around the country, and perhaps some non-casual fans like myself, if the natty is just the Deep South Bowl every year. I have no interest in tuning into that. But that's speaking for myself.