I think it's more recognizing that there is a trade-off. Yes, most other sports have a tournament at the end of the year to determine a champion, but at the same time, those other sports don't have the ratings or attendance that football does...especially at the minor league level. And it's near universally recognized that college football has the most intriguing regular season in all of sports, in no small part due to the exclusivity of the post-season and the razor-thin margins that separate everyone, making every single game crucial. College basketball's regular season rankings aren't anything special before the tournament, college baseball is a nothing sport before the CWS, it's only once you get to the postseason that anyone cares about either of them really. In football specifically, we already see in the NFL what happens once a team locks up their playoff position, it's not hard to argue that you would see a diminished regular season. Heck, we already saw that last year when Miami knew the ACC title game was a play-in game for the CFP so they rested against Pitt.
I mean, if that's a tradeoff that you are comfortable with, that's totally a case that can be made. You can very much argue that it's better to make sure that everyone deserving is included in the postseason, even if it harms the regular season. I'm not sure you can say that it's a hypothetical though, it's a certainty.