Wawrinka has just blasted off Ferrer in straight sets. He's now beaten Cilic, Raonic and Ferrer in straight sets to make the final here. That's pretty good and a well earned position.
Ferrer though might have been somewhat overwhelmed after beating Nadal in straight.
Judging by Wawrinka's form here, I wonder how the match would have panned out against Nadal had Ferrer not beaten him, especially when Nadal recently admitted the AO loss being on his mind quite a bit and affecting his performance of late. In other words, he's not feeling as confident. I can't forget how a lot of fans said both during AO and Miami how brilliant Nadal looked, but the same tone changed after he got beaten in both events and by worthy opponents.