The ("modern") court speeds usually favour Djokovic but in the wind against a resourceful opponent like Murray it really worked against him. He couldn't think of a way to end the rallies as Murray flat out refused to take chances. This led to some ridiculous shots that acted as approaches and his net play was exposed. The overheads remain a glaring weakness and Murray's level just didn't drop the way he (Djokovic) might have expected it to after the conclusion of the 4th set.
Luke had a better H2H but Vader is still the GOAT.