HA,
since I have been in Darwin there have always been the knockers.
My experienc is that the ones with the most to say about every one else are the ones that need to take the closest look at them selves.
If you are doing such a bad job you should have either gone "leg up" or CASA closed you down.
To the best of my knowledge, neither are applicable so I put it down to sour grapes.
The best that could happen is that these guys and girls brown nose them selves a job down south.
good luck