He was running at full speed made absolutely zero effort to use his hands to score and just dived over it with his body and it was awarded a try, this could be a new precedent.
When players kick behind the lines and players have to come at full speed chasing through, it's fairly hard to pick up the ball and score, or ground it while diving at full speed.
If players can just throw their body over the ball to score while diving, then it's impossible not to score seeing as apparently you can't knock on with your torso either, so now we might see players scoring by diving over the ball with no attempt to actually use their hands to ground it, wow I certainly wouldn't be impressed seeing trys being scored by jumping on the ball.
Now either the ref ****ed up, or as they seem to do was following the rules like a robot (ala, skin on ball on ground = try even with no control), if it's the latter, then I think we might see a few teams use this tactic and I will be very annoyed if so.