Rob I am going to post a critique probably tomorrow as I watched the game on Sky today for the first time. I actually thought the camera work and replays were woeful but that is another matter.
Just to get you started.
Penalty 1 in the match is quite possibly the most pathetic and unnecessary penalty ever awarded. It was a disgrace. If somebody sat Klein down, they could say you awarded that BUT every tackle completion / POTB was slower and worse thereafter. He has no defence.
Here is my overiding concern. I honestly believe Klein is the worst referee in SL possibly even amateur (amateur referees are fantastic at this IMO) for safeguarding the safety of the players in his charge. Fielden he played on. Richards he played on. Both dire, the Richards one was the worst. Surprisingly

Wigan conceded penalties immediately after. Again, I thought he was poor as regards high challenges. Here is part of my honesty. Early doors, he had 3 opportunities to penalise Wigan for high shots. We got away with a blatant grapple.
Here is another dilemna for officials. They need to understand the game and how it is changing.
Firstly, I think referees need to be aware of a variation on the grapple. Cayless repeatedly tackled Trent by coming over his shoulder, gripping shirt/shoulder but it still brings his arm into contact with Trents head.
Cunningham showed the person he is in his reaction to Fielden. Very different to the Saints players generally I may add. Adrian Morley has perfected a deadly assault method. What he does is keep his hands close to the side of his body and rushes at an opponent. As he makes contact with the ball carrier he moves his arms forward aiming for the arm to make contact with the ball carriers head. He recently KOed one player doing it. KC used that technique, he threw a short arm at Richards head. The body gives him the momentum, no need to swing the arm full. Indeed, it is better not to because compressed force from a short arm jab is much better. I am huge boxing fan. When a boxer punches, the best punch is one that if the opponents head was not in the way. would finish several inches, maybe more past the face of his opponent. It still has huge energy. If you hit someone at the full extension of a movement, your energy is dissipated and the impact far less.
Kleins disreagard for players safety was awful.
Try or no try, Klein has no defence for not going to the video referee early when Colbon challenged for a kick.
Oh and you know my view on forward passes