Are you guys watching the same replay that I am?
He hits him first and then swings around with the forearm shiver directly to the side of the head.
It's two separate plays, watch:
He comes in for the stick check and as he misses it he follows through with the elbow, tucking it, bracing the arm, swinging his torso and then extending and following through.
It is
super dirty and a flagrant hit to the head.