It's the inconsistency of the ref's that annoys me. Webster goes over the back of Higdon, no penalty. McPake goes over the back of him, penalty. Someone yesterday goes over the back of him, no foul.
I'm not even that bothered whether a challenge like that is deemed a foul or not, just make it the same. For all the chat about good/bad refereeing and the need for it to change, all the game needs is consistent refereeing either way so that everyone can adapt to what the rules are, and the game would improve.