I also think its about what you want to achieve from a tackle and the circumstances of it. Generally in the tight nitty gritty of the pack the priority is to prevent the carrier, who is coming with momentum, making the hard yards and to have a chance of a turnover. when he is hitting the 10 like this he is standing still with no momentum and Lawes just wants to smash him, put him off his game as well as maybe dislodging the ball.
I cannot believe he has got away with a three game ban! Utterly disgusting bit of play and has to deserve a ten figure ban minimum. It takes a special sort of dirt bag to stamp on the neck / face of somebody who is on thee ground. »