IMO, "intent" should be the key.
Enyl had no intent to cause any harm whatsoever, and that is just plain obvious.
However, on our very next series right after Enyl gets tossed, Monty catches a pass out in the flat, and the WSU CB totally just lowers his head and leads with the crown of his helmet, and a helmet to helmet is only avoided because Monty has a split second to move his head to the side so the WSU player's helmet hits his shoulder.
Now, out of those two plays, which one is 10x more dangerous to the players safety and health? Enyl just basically landing on Minshew and their helmets touch, or the WSU player leading with the crown of his helmet going full speed into Monty, and only missing Monty's helmet because Monty had a split second to avoid it?