Kieran said:
Second last point of the 4th set tiebreak, Cillic pushes Roger out of position, then drills a straight-forward DTL forehand into the trams. He should know better by now. There were many occasions where a bloke with a spine would have taken that match by storm, but Cilic wasn't that bloke.
He *coughed*...
I agree that Cilic was far from stellar in a few key points in the match (but so was Federer, the set point he missed prior to the shot you mention was 983274329487 times easier). The shot you mention was not very hard, but not that easy too. It was a running forehand, the ball had spin and it was quite low. In a tie breaker, in the 4th of a Wimbledon quarter final. A lot, and I really mean a lot, of folks would also miss that shot, and you know that.
It was doable? Surely it was. But misses like that are far too common.
Cilic played at a insane level at times. If he would play like that always, he would not be #13 in the world.
So, yes, he could have won that match. But it was not the first, and it will not be the last time, that one of the big three wins a match because the opponent can not sustain the extremely high level needed to beat them. That´s why they are the big three and the others are the others...