I think Morley is a good prop, good hard tackler, but he needs to spend some time with victims of brain injury and see what can happen to a person. Over the years he has consistantly gotten into trouble for attacking the head of other players.
This most recent incident was pretty scary, and the Rabbitohs have a legitimate reason to feel robbed, they lost their plamaker and Morley got put on report after his team scored a try in the same set he knocked Walker's head off.
It needs to be driven home to him just how bloody dangerous it is for a man of his size to hit an opponents head at speed, before someone ends up with a permanant brain injury. He looks like the kind of guy who doesn't mean to, but the fact he's done it so many times begs the question; when will he learn?