When the Brumbies bind up in maul and opposition doesn’t engage that is fine. Take a step forward like they did it is a penalty - flying wedge all be it slow.
Flying wedge: An illegal type of attack, which usually happens near the goal line, when the attacking team is awarded a penalty or free-kick. The kicker taps the ball and starts the attack, either by driving towards the goal line or by passing to a team-mate who drives forward. Immediately, team-mates bind on each side of the ball-carrier in a wedge formation before engaging the opposition. Often one or more of these team-mates is in front of the ball-carrier.