You need to take your issues with the management of Williamtown airspace up with the Royal Australian Air Force...
I don't know about the RAAF, but the army at YBOK have certainly showed some common sense. They have recently (on Thursday) squared-off the control area to the south, effectively allowing transit from YTWB to the west OCTA. Not sure if this is due to the new Wellcamp airport or not, but certainly is a step foward