I've just been reading about this (in fact, it's my reason for checking SAB today). In both cases it is clear the organisers decided not to bring in medical assistance when they clearly should have (and were probably hoping these people would just pull through so they could avoid outside scrutiny and some difficult conversations).
This Guardian report on Jarrad Antonovich is saying that after his death, one of the people involved told his partner that he died "beautifully" and that “the koalas were making a special sound known to the Elders when the land accepts a spirit”.
Dickheads.