And then the mandatory requirements are spelled out, as has been stated many times in this thread, not one of which was complied with. If even one had been complied with the disaster would have been avoided.
You will no doubt note the date of this memorandum, well after all the previous flights.
That being the case, you have just confirmed that Mahon was correct in his conclusion that the flaws in Air NZ's administration etc,. contributed to the cause.