Guys this is a goal. Read rule 63.6 in the NHL Rule Book. If the ref determines the net was intentionally knocked off (which you have to believe it was, Boyle is not an idiot), and there is an impending goal (doesn't need to be a shot in progress, perry was right there), a goal can be awarded.
Rule 63.6. Awarded Goal: When the goal post has been displaced deliberately by the defending team when their goalkeeper has been removed for an extra attacker thereby preventing an impending goal by the attacking team, the Referee shall award a goal to the attacking team.
