I place more blame at the player taking the dive than the poor ump that has to make a call on it in the split second it happened. That one was a bad one though.
In fact, there were hawks players taking dives all over the ground I noticed. Smith threw his head back a few times after a fly landed on his nose. Gone are the days of tough hawks footy. Lots of namby pamby cats in their side at the minute. Gunston took a massive dive if I recall too.
Not just the hawks though but it has been creeping into the game for years. I watch soccer too (aleague, epl, championship and now a shite load more on beIN) and im comfortable with asserting that on average there are now more dives in your average game of footy than I seen in an average game of those soccer leagues I mentioned. Anytime someone footy related mentions something like 'oh soccer is full of diving' or the like, tell them they're full of shite cos it happens just as much if not more in footy. There might be more blatant ones in soccer, but all the throwing back of the head, and buckling at the knees and bending yourself in half when tackled all counts as diving/play acting. Used to happen every few rounds, then every few games, now it's every few minutes.