Because there's a difference, Verdasco has just lost his head now and let Murray into it, it's not as if Murray has went up a gear and outmatched the in form Verdasco. He's just playing better now because Verdasco is playing shite now. It's strange. They both of them don't seem to be able to play the top of their game against each other, one on form, the other is off.
The problem with praising Murray over a comeback is as always, too much media pressure for Murray. He'll think he's better than he is, fact is, he's made this hard work for himself by serving like a 5 year old on his second serves.