NFL meeting to ban hip drop tackles.. (Update: Now banned)

i mean... by rule what's stopping the ref from flagging that? other than it being the Rams....
The fact that he only has the runner by one arm wrapped around him on initial contact and the tackler DOES NOT underweights himself onto the runner. The defender made contact with the field prior to his lower body making contact with the ball carrier.

ARTICLE 18. HIP-DROP TACKLE. It is a foul if a player uses the following technique to bring a runner to the ground:
(a) grabs the runner with both hands or wraps the runner with both arms; and
(b) unweights himself by swiveling and dropping his hips and/or lower body, landing on and trapping the runner's leg(s) at or below the knee.