Are you serious? The goal never happens if Perron puts it deep with 3 guys on him. Don't act like Perron wasn't responsible for that at all.
At some point the Ducks were going to get a shot on goal. It couldn't have been much easier of a shot that went through Elliott. That's like blaming a guy for losing a faceoff in the offensive zone and they come back and score. Elliott gets the blame for a shot going through him.