All laws say "ball has left" the ruck maul or lineout or scrum. Hands on doesn't exist in Law, only in the interpretation of elite referees , which then feeds down to below that level eventually...... unless anyone can evidence a "hands on law"?
It'sanother tactic, keeps the guards occupied & guessing....the dummy & cut option is available & actually buys time for outside backs ......... fly halfs should align deeper & exploit the extra space created....so no, you're not correct IMO.
I don't agree that George North had a great game.......... Yes no doubt going forward he is impressive, but how many times does he get drawn in ....ie not trusting his inside teammate to make their tackle ..... Australia ran around him a number of times ..... three try's cost? to my reckoning - Yes !