With Freddy's case IMO objectively speaking the kicker was late getting the kick away (thus I think Webby said he thought he's gonna get charged down or something in the presser) and because he was late Freddy was able to get so close to the ball and I'm not sure but he did charge the ball down? Along with the kicker's leg?
You see so many kicks in union and league where the kick was rushed that the kicker got the ball away and rebounded his leg off the tackler, SJ might have done it a few times too but now he's better at skipping away for the kick
The difference here is Freddy went for the ball instead of making himself big and aim to block the trajectory of the ball like a goalkeeper, and ideally jump semi vertically to achieve that
He lunged forward at the ball in a way you do when you're far away from the kicker and diving for the block, which connected ball and leg, I think usually you aim for the upper body or bear hug them or jump directly up but he used the O button on Xbox and dived forward and connected everything, unfortunately a leg was broken as a result
So in summary he needed to jump up or dive from a diagonal angle sliding away from the foot for a proper charge down, instead of diving directly forward. They'll probably give him 8 weeks
As for the kickers SJ probably have the best idea if you're late either pass, skip away for the kick or just take the tackle as you'll be in a vulnerable position and it's not worth risking your body
As for if Mitchell did this and broke SJ, I'll put it down as unfortunate because this is really a split second thing and not many people get to charge at such a late kick in a game 6 point behind with 20 seconds to play, will be mad for our season but won't be anything like the elbow or tipping he did especially if he broke our key players that way
NRL will make an example but our players need to be doing little moves to protect themselves, the Souths kicker is young so he rushed it and IMO he'll probably start kicking like SJ and more experienced players for protection, no point arguing about it after an injury has occurred, protect yourself first, kinda like turning right in intersections, don't take the incoming cars' indicators for granted, wait for them to actually turn left before you go forward
Rant over