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

In this situation, I still think that Tom Brady is more right than he isn't. Who is teaching offensive players how to protect themselves? But the defensive player is supposed to worry about protecting both themselves and the offensive player...

My question is once they pass a defensive player, is the defensive player out of the play? I would love for someone to explain the tackling technique for bringing down somebody running full speed from behind.
They are still allowed to wrap up the legs even the ankles from behind because they aren’t putting their weight on the legs maybe their upper chest and head but not their whole body. They can’t grab the waist and then sit on the lower legs.

There were only on average one hip drop tackle every 10.4 games, according to the stats the NFL released, but I’m guessing that there were multiple players tackled from behind each game. A tackle from behind is not a hip drop.