Totally disagree, not because I am a Murray fan. This is a professional sport, and you play each point to win, regardless of luck, injury to opponent, or anything else.
Im no murray or troicki fan or hater. Its just the way I play myself and other players I play against. When an other ball comes in court and the point is practically won.
Off course you win the point when your opponent is injured, or when you hit a netcourt dropshot, that is all in the game of tennis. For me this has nothing to do with tennis the point was for 99.9% finished.