this paragraph from the atsb report could be read two ways.
The Aerobat was recently purchased with the intent to conduct aerobatic instructional flights for its members. At the time of the accident, the aero club did not have a Civil Aviation Safety Regulation (CASR) Part 141 certificate to conduct flight training in a VH registered aircraft, nor was it required for an instructor to conduct spin or aerobatics flight training. There were no aerobatics-trained instructors at the aero club.
The aero club sought the assistance of a contracted aerobatics instructor to conduct the aerobatic flight training, utilising the instructor’s own flight training approval. The first aerobatic flight training conducted by the aero club utilising VH-CYO was the week prior to the accident with the flight instructor who was on board the accident flight.
https://www.atsb.gov.au/publications...ir/ao-2021-025