One of the many, many flaws in your post #2169, No Hoper, is that there are patent errors in the transcript of the radio transmissions. What other errors aren't patently obvious? The CVR might help to answer that. But ATSB, and others, don't want to find out, because the answers could be very inconvenient.
You assume the statements in the report to be fact. They are not fact. They are merely and mostly a cherry-picked, paraphrased, mish-mash of mostly second and third-hand hearsay - and known mistakes in transcription and transmissions - supporting the foregone conclusion. One of the patently obvious safety issues that isn't analysed is that of the performance of the life vests.
It's a sick joke.