I can only speak for myself and the people I associate with but generally it appears that most feel that he has got away with it and he generally should be rejected by the rest of the hunting community.
Unfortunately, there is a significant number of people in Australia that consider themselves "hunters" that have a very short term approach to hunting and behave accordingly. Activities including poaching, trespassing, spotlighting etc are often seen as acceptable methods of take. This aspect of the shooting community probably see nothing wrong with the way this has all played out.
Sadly, we have a bit of a track record of very weak punishment for hunting and game management offences in Australia.
It seems like most hunters that are serious hunters are feeling the same as you. I am sure it is hard to get a judge to take it seriously with how wildlife is there compared to here in the states.
I am interested to see if his US sponsors do anything at all.