Djokovic absolutely crushed Federer in the first two sets of their AO semi 16, the commentators were flabbergasted by what they were seeing. They said they have never seen Federer manhandled on a HC like that ever before. That month, Djokovic was a wrecking machine against his big four family, he crushed Nadal in Doha despite actually playing poorly leading into the final, and Nadal looking the better player. Then AO, he overall did not play that sharp heading into the semi, but once he got there and saw one of his big four family member, he just switched it on. Federer did not know what hit him. Likewise with Murray in the final, as soon as he saw him, he went on a tear against him in the final also. That semi final - final version of Djokovic will not lose to a 35 year Federer who was injured, had a bunch of MTOs, lost his concentration and allowing Wawrinka and Nadal to take those sets from him. Djokovic 2016 was switched on from the start in that semi, he was seeing the ball like a football.
There is reason why some here used to say Djokovic goes in E-Mode when he saw Federer, Nadal or Murray across the other side of the net. You simply cannot compare the Djokovic in Simon match to Earth' Mightiest Warrior form that he unleashed first on Nadal in Doha, and then on Federer and Murray in AO. A 35 year old Federer coming off of six months, would not in my opinion take down that version of Djokovic...you would need to bring peak Federer from 04-07 to stop him. The surface would not help a severely past his peak mid 30s Federer against the greatest Plexicushion player of all time, in his absolute peak
So, happy to disagree and leave it at that.