There is an obligation to do the right thing, and it looks like it's being done very well.
The whole operation shines a very positive light on the ADF and shows us working well with neighbours, including Malaysia and China. Bet none of the ADF people thought they'd ever being flying alongside the Chinese!
Interestingly, the Mad Monk was taking about cutting the ATSB by 20% a couple of weeks ago. I guess this will be the biggest and most complex investigation by the ATSB ever and they'll need a heap of extra budget.