In most cases we would like to see a fighter step up a wieghtclass due to a super fight of some kind. In MM's case its that hes just superior everywhere to fighters in his weight division.. For example, he rivaled Dodson speed and in certain areas surpassed it (Dodson at that time was considered the fastest fighter). Take Borg last night... great scrambler... who won 95% of all scrambling in that fight? he knocked out Benavidez and Benavidez was knocking out ppl left and right at that time. The only guy recently that gave MM some trouble was Tim Elliot that had both a size advantage and reach advantage. This is the main reason we want him to step up a division cuz unless u have a size and reach advantage it aint really a fair fight, thats how good he is!!!
You make good points but I'm going to be logical here so please don't go on the attack:
MM beating the shit out of everyone in his weight class doesn't necessarily prove that he is great.
Logically, one could just as easily say those guys are just average fighters, maybe they are great at one or two things that comprise what mma is but they are all just average.
Ali beat great fighters
Fedor beat great fighters
Who are the great fighters Demetrious has beaten?
This is pretty much the reason people exclude Tyson from consideration as one of the greats. It's all just idle fan-talk because he's demolished everyone he has had to but if we are going to engage in idle fan-talk then we ought to be objective imo.