The Ferris tackle was probably a penalty by the letter of the law, but it really wasn't dangerous and imo was just a solid tackle. Physicality is important in rugby, and such tackles should not be viewed harshly. Ian Evans didn't land on his neck, just on his side, what's dangerous about that? I think Jonathan Davies (pundit) has the correct attitude here. Sometimes a good dump tackle is simply a good tackle, but I think pretty much every one is gonna result in a yellow/red card nowerdays. Bradley's was a blatant red card, Ferris was just a good hard tackle!
One other thing. I think ref's need to be told I think that when an attackling player clearly get's over the try line (as Ryan Jones did), if he needs to go up to the TMO, then the question should be 'is there any reason why I cannot award the try'. 8 times out of 10, Ryan Jones get's that ball down, and the benefit of the doubt should be given to the attacking player. Before the times of video ref's that would have been a try every single time. The TMO made the correct decision based on the question asked by ref, but if the ref asled the correct question, a try would have been given, and correctly imo. It wasn't a big problem in this game, because we scored afterwards anyway, but in future ref's need to stop copping out.