I think this section of the report offers some useful clues - and lessons:
"Information about Coombing Park ALA was available in the OzRunways application. This application was installed on the flight instructor’s mobile phone and was in use during the flight. At the time of the accident, the application had an additional ‘remarks’ section for Coombing Park that included:
Bird and animal hazard exist.
Rising terrain east of field.
No other procedures were included in this guide, nor were they required by any regulations. However, following the accident on 12 November 2020, additional information about Coombing Park ALA was included in the OzRunways application. The ‘remarks’ section was updated to include:
Rising terrain to East, crosswind departures from [runway] 07 only Terrain at 3,953 within 3NM of field.
No go around on [runway] 07 Power lines at end of [runway] 25
Additionally, ‘procedures’ were added to the OzRunways application in the same update that included:
RH circuits on runway 07 Crosswind departures from [runway] 07 Up wind departures from [runway] 07 prohibited
Simulated engine failures prohibited Engine failure on [runway] 07: make RH turn and glide to creek flat
Coombing Park ALA was not included in the Enroute Supplement Australia (ERSA)."