For the clean-out to be legit, I want to see binding on the jackler preceding contact with any other part of the body, and I want to see the cleaner-out driving over the ball and driving the jackler off the ball. None of which happened.
I'd also add that there are more ways to kill a cat than drowning it with cream; if the cleaner-out takes a 5-10 metre run up at a jackler, then if the jackler is foolish enough to try to take the impact square on then he will get blown away. In this instance, that didn't happen.
As I said, you see what you want to see. I see this sort of scenario as play-on, all day, every day, at any level of the game. If unsure, I will err on the side of the team in possession at the contact.
You'll see a dozen or more of these in every match this coming weekend, and none of them will result in a PK. IMO, if you PK this, you come across to me as a jobsworth; looking for reasons to blow the whistle.
Personally, I would rather referees NOT look for ways to stop the game, because when they do, they make it all about them when it should be about the players... its their game, not ours!