"I have been contacted by relatives of the deceased and it's clear that while they would like the aircraft located - they also would not like to see this type of accident repeated - that is safety improvements were not made and in effect lives were lost for nothing."
If that was the case, the all the coroners findings and suggestions re safety improvements in a range of accidents wold be implemented.
Flying spike summed up what I posted earlier
"Your interests might be better served to concentrate on the Williamtown coastal route rather than questioning every bit of military airspace. You don't know because you don't need to."