Agreed. As was identified earlier in the thread, it will be practically impossible to legally tackle anyone who picks and goes from a break down, unless there's going to be some body angle law to penalise attackers, which would be absolutely ludicrous. That won't be an issue in league.
Agree on the comment on knees to the head too, the only concussions I ever got were from that and being stamped on.
There's a drive in union to have the height change to be sternum and below, which seems much more sensible. If that doesn't come off and the rule is waist, I don't think I'll be watching a lot more union.