And Mike. I have never ever suggested that lives have been placed in jeopardy "on a whim" by the RAAF or anybody.
This flight planning restriction was put in place so long ago that I bet no one today knows who wrote it. I have spoken to retired military ATC's who believe the restriction is no longer necessary and say they would far prefer to have the flight plan details in the system rather than have to key them in at the last moment.