To take a step back to reflect on current conditions, it was not long after last light (10 mins or so) in blowing dust and gusting 48kts on the TAF that the aircraft crashed. It was flying the coastal route south. The conditions were horrendous and would be close to IMC conditions. The aircraft apparently refueled at Coffs so would mean it would be very close to being into reserves (if no aux tank fitted near the hell hole) by Williamtown to add to the weather.
If one was “planning” to do a NVFR flight you would be at least at lowest safe if not 4500’ from the Taree (Ugpot) to Willy leg if following the airway. I think there is more to the story which no doubt ATSB will uncover.
lets hope they can find and recover the hull
RIP