Agree. In the old days an ump would pick out a free to clear congestion. If they did this more often there would be less advantage sending numbers to the ball. It would stop the rolling maul and get the players to spread more. I'm sure it had this effect in the Hawk's/Power game.Umpires needed to assert themselves more, maybe pay a few more frees, or even a 50m penalty here and there.
There should be lots more frees for incorrect disposal, holding the man and in the back imho.