Lack of Helos
As Redback 20 indicates, the war in Afghanistan has become so politically correct with the Australian government, that they put their own soldiers on trial as some type of demonstration to the world how "responsible" they are. It's almost a form of self flagellation.
More will die, politicians will utter hollow words, then hop in their VIP jets and return to Canberra - the soldiers forgotton.
By the time they clear the MHR 90 and Tiger for IOC the Australian forces will be out of Afghanistan...
Maybe that was the idea in the first place?