Sarcs...I would argue that this accident had enough complexities and murky layers to warrant the bureau to at least write a preliminary report but yet again it never happened.
This is an interesting point regarding not investigating as not a priority. Despite Ian having put his trust in Hempel and being a fare paying passenger on a VH registered aircraft under casa approval. But if the ATSB had investigated they may have found the issues with casa oversight. Consequently Pel Air may not have happened?!
You also have the Barrier MD using phrases like 'personal vendetta by casa'. This sounds like bullying and harassment rather than regulatory oversight!