Jaba, I edited my post because, on second thoughts, I have to admit, my initial post was merely ponderings - and the pilot characteristic I mentioned could have had no bearing on the crash whatsoever, and could possibly have reflected badly on the parties involved, and perhaps given some people a wrong impression.
Mustering is simply risky work, and it could have been simple pilot error that caused the crash. We'll await any evidence, as there may have been eyewitnesses. However, it's a very remote and sparsely-populated area.
SD is just happy she wasn't tasked to assist with checking the crash results - as she could have easily been - because it fell into an area of her responsibility out there. She moved out over the QLD border the day before the crash.