He didnt move from the actual shot tho. It deflected off a United player which took it in his path. Surely the "obstructing the keepers vision" argument is for the initial shot only?
Mark Clattenburg has come out today saying he would have allowed the goal to stand too, any argument that De Gea couldn't see is lost on the fact that he moved in the right direction to save the initial shot. If he couldn't see it he may well have saved the deflected ball as he wouldn't have been wrong footed. VAR is causing even more controversy than before and yet it was sold to everyone as a way to get rid of it all.