Am I the only one thinking UVC may have violated the Willy CTR without clearance and that might go some ways to explaining his fairly rapid turn out to sea?
ADS-B Exchange has the last ADS-B plot at -32.804943, 152.043326, which appears to be the second-last one
FR24 recorded, based on altitude, but it's closer to Williamtown. When you plug those coordinates, and those of the WLM TACAN into a few different Lat/Long distance calculators, you come up with 11nm, according to the US NOAA, or 19.66km / 10.6nm according to a couple of others. The CTR extends 12nm from the TACAN, so is it possible he feared a pineapple for busting their airspace?