Skelton's involvement in the tackle was harmless UNTIL Latu got involved. How they can say he's responsible for the level of danger in that tackle is to complete ignore the 4-week sentence handed out to the actual culprit.
You see that kind of tackle Skelton was attempting every week but go unpenalised. Even in this game: Nadolo flipped Hooper in a dump tackle, onto his face, while wrapping his arms around Hooper's neck and head, at 33:48 in the game and the ref didn't even stick his arm out. No judiciary looked at that, but it was just as dangerous as Skelton's actions in any other part of the game.
As none of his other offences were citable, they decided to ignore precedent, commonsense, and physics, and throw the book at Skelton as a sly dig for his two other incidents of physical intimidation.
TWO referees - one on the field, one in the box, looked at the footage and saw NO sanction for Skelton at the tackle on Whitelock. So the judiciary is taking a massive shit on Marius vdW and wiping their arse with Peter Marshall.
It probably would have been smarter for the Waratahs to challenge Skelton's but admit Latu's guilt and move on. Now they've fucked it and the rest of the team need to cover the loss.