No one has punched Miami in the mouth yet so until they show they can take a punch, they haven't proven anything.
We, on the other hand, have already made it through two twelve-round slugfests with iron-fisted heavyweights. And despite the fact that a wheelbarrow full of dead fish left in the sun for a week smelled twice as good as our offense did against Clemson, our D was quietly pretty effective at keeping their offense off the scoreboard. Kayaa and the pink storks from Miami aren't scary to me - not after Clemson.
Oh, one more thing. Their ranking is bullcrap - a function of "..an SEC coach moves to the ACC so whatever team he coaches just has to be good - its just gotta be!"
That's what I thought about Mendenhall and we see how that's working out.