It was a soft backhanded shot five hole. That's not the kind of shot most players get on a breakaway if someone's not impeding you. Sometimes, players go backhand forehand and slide a backhand between the legs, but he didn't even do that..
Due to the fact that you have never played goalie on the ice, you have no clue what its like to stop that kind of shot.
A player cutting in like that naturally opens up your five-hole while you're simultaneously butterfly sliding to match his positioning. If you don't play it 100% perfect you're either going to get lucky, or you're going to get beat.
Goalies get scored on, these are NHL players. Give some credit where credit is due. Also, refrain from talking about goaltending when you don't have any clue about it.