I thought I saw the 5 hole open up as the goalie moved from his right to his left. It is a very good and simple move. As you get the goalie side to side moving his pads will split.
I would have to see the replay again to be sure but during the game I was fairly certain I saw the goalies pads open as he went from his right to left. Hard for a goalies pads not to open when moving horizontaly across the goal mouth.
Edit: I just watched the replay. At first Hill had the 5 hole covered with his stick but towards the end it did open up imo. Obviously watching on my phone in hindsight is a luxury Laf didn't have at that time.