kadri definitely did it on purpose and he has a history
The way I interpret that hit, is that I believe what Kadri was saying.
He committed to the hit, and there was no way he could stop.
Now here's the thing that makes the difference IMHO. Even it is true Kadri had already committed to the hit, it was still a borderline type of hit, regardless if Wingels was standing or bent over.
Wingels hit on Marner, after Chara rubbed him out tough along the boards, was borderline too getting a shot to the face in. That's like 450 pounds against 160 pounds getting bullied in the corner for his lunch money like a Kessel.
Someone had to do something.
The refs have not called this s shit all series.