"Let's wait for the ATSB investigation"? What fine upstanding sentiments. With a little bit of luck most GA incidents and accident reports should be completed and published within two years, give or take six months or so - by which time people will have forgotten all about the accident and as it's so ancient no one will be interested, anyway.
In any case, by the time the legal eagles and top ATSB managers pore through the investigator's initial report, then twist and omit a few incriminating paragraphs, the report will come out quite bland and in the end it will be left to the reader to read between the lines and hopefully learn something of value from the accident.
ATSB can make all the excuses in the world for why final reports for light aircraft GA accidents take sometimes two years to be published. Even the preliminary reports which are so abbreviated as to be worthless often take months to surface. The Camden Duchess fatal accident is a case in point. Do any of Pprune's current readers remember that accident? Well, it happened one year ago this month and still nothing has filtered down through official channels.
Yet there is every reason to think that flying instructors who carry out multi-engine training, and students who hire instructors to teach them how to fly safely, could learn a lot from the circumstances surrounding that accident.
Regardless of the knockers of Pprune, there is often much more up-to-date reasonably accurate incident and accident reporting available on these pages than dribbles from ATSB.