Really?
He sure as hell wouldn't have beaten Nadal like that though no matter how good he was...
Actually, you don’t know that, you really don’t. You’d have said the same thing about Tsonga if this match never happened.
I think Federer’s level was just as good, perhaps even better, in a number of matches at the AO. 2005 QF, 2007 SF, 2009 QF and 2010 SF spring to mind.
The thing with Nadal is that he really doesn’t touch Federer or Djokovic in returning capability on HC; a cursory glance at their respective returning numbers against top players reveals this. So, when Nadal isn’t feeling it off the ground or is rushed for time, his return game is liable to fall off a cliff, leading to very lopsided scorelines.