I'm sorry, but are you completely insane??? Elbow to the head? The closest the elbow came to the head was when Letang's elbow was next to Comeau's elbow when he hit him shoulder to shoulder, other than that, I don't see the elbow as coming even within 3 feet of the head.
It wasn't blindside, but it was an elbow to the head..
This is the bad part of the new rule....you are going to see guys get 5 and a game like this for perfectly clean hits that would never have been called penalties in the past.