It would appear weather is only one part. So more details coming out, the PIC was not even licensed, didn't even have a RPL, potentially not even 50 hours. No Navigation training completed at all. Did they even have a SARTIME? Quite a few rules broken here. Some of the videos on this blokes social channels don't look that great either.
CASA need to tighten the bolts in remote areas? I understand it is quite challenging doing a ramp check in remote locations, stations etc. RPT operate into Prosperine. I know many RPT Pilots get nervous in some CTAF areas with training traffic, let alone someone with essentially no training at all.