Quote: Forty - Twenty "The new law states any contact with the head from the opponents shoulder is illegal and within the laws set out by the RFL is a red card. Whether it was intentional or not whether Russell lost control of the ball - shoulder to head
I believe you are correct, any contact with the head is a penalty accidental or otherwise and if it's the shoulder that hits the head then it's a red card, accidental or otherwise.
This was the same as the Cahill tackle on Hodgson, accidental but still a shoulder to the head therefore a red card.
Having said that I didn't think there was contact to the head until I saw the zoomed in replay from behind Magraff and it was a definite shoulder to the face as Russell stooped to regain the ball.