His forehand was deadly today and he went for it .Federer's service was a bit poor and he maybe was a bit flat from that long semi .At 31 its tough to recover from matches like these
If his forehand was "deadly" today, he wouldn't have hit only 8 forehand winners in the entire match against a man whose predominant weakness in recent years has been his movement towards his forehand side, aside from today when Federer's movement was far weaker than normal. Federer was also hitting very weak approach shots where he was barely passed the service line to the Murray forehand.
Federer recorded 31 unforced errors according to the statistician today, though I believe there are more. It's just his considerably weaker movement today made some of Murray's shots look better than they actually were. I have never seen Federer's agility so weak, he couldn't get back into the middle of the court after being pushed out wide and his attempt (and decision) at running around the backhand was abysmal today for two reasons. 1. Because he simply didn't possess the foot speed today and 2. Because when he did run around it, he was well out of position and he knew in his own mind today that he was flat physically and had to hit almost an outright winner, which disabled him from playing freely and actually even making the court.
Nevermind those dismal backhand slice returns that floated and sat up for Murray to pound.
Then there's the usual lack of break point chances converted, which were caused by an accumulation of these factors.
It's an understatement to say Federer was a "bit flat" today. A "bit flat" 7 time Wimbledon champion does not get crucified by the man he beat in 4 sets only a month ago on this court and in doing so receives one of his biggest beatdowns of all time.
I am not discrediting Murray, he did what he had to do and he was gracious in victory, but let's not kid ourselves.