If this statement had any logic to it, then why don't we just skip the regular season and have a 60 team single elimination tournament and declare that winner the "Best" team in the nation? Please.
Lots of teams are "good enough" to win the title, not just the 1st place teams. Nobody's arguing that. I can't speak for other posters, but I imagine the main point is just that season-long excellence from October through February against for the most part the same competition is a better gauge of how good a team's season has been than a 3 or 4 round single elimination conference tournament in March. I completely agree with this line of thinking, but that only holds water when comparing teams from the same conference. How they compare to others outside their conference is a completely different issue. We can love it or hate it, but the conferences themselves choose to award the auto-bids to the tournament champs rather than the regular season champs. This is usually only an issue when dealing with "mid-majors" like AHC that may only send one team. The big 4 (5?) aren't usually as concerned since the auto-bid gives them a shot at an extra bid if upsets happen in their tournament. It's pretty unlikely that a regular season champ in those conferences will be so bad in their OOC games that they can't get in. It has happened, but not very often historically outside of the MAAC, AHA, AHC, CHA, and ECAC.