I've seen it before once or twice but it was far more direct situations. One of them was a two on one in a game where #2 guy high sticked the defenseman as he got to the net and cut the guy as the goal was scored. Refs didn't see it, but a linesman saw the stick get high.
In this case the high stick really wasn't an egregious slashing of the face, honestly I'm confused as to how it drew blood to begin with, and wasn't integral to the goal being scored.
Couple that with at least two non-calls on that 4 minute PK with one involving Toronto tripping Malenstyn thus directly leading to the 2-0 goal is outright lunacy.