I cannot comment on the professional aviation issues here. What concerns me is that despite the detailed conclusions and observations of the report, neither ATSB or CASA has distilled the event into a simple safety message(s) to pilots.
This HAS to mean that despite claims of the PIC having an "attitude" problem and transgressing some regulations, that the situation he faced was far from clear and that the regulations, his employers training and procedures and Air services provided insufficient guidance to someone in his situation.
Were that NOT the case then he would have been prosecuted by now and no doubt convicted.
CASA and ATSB seem unable to draw a line here, close the event off and move on.
This leaves all of us vulnerable to a repeat performance because there are no "lessons learnt" from this.