From most accounts, Wiz, it would seem that Ansett was past the "saving" point - and probably had been for some time, prior to its initial collapse.
My guess is that is was held together for as long as possible to allow as much to be sucked out (by those who knew its true position) as possible.
Why you and others, continue to DREAM that Singapore was going to be Ansett's "white knight" is beyond my comprehension.
SQ have had a bit of a dabble in Oceania, when they got involved in Air New Zealand in a small way.
For the record, I'll again say that ANY prospect of SQ becoming involved in Ansett was dashed, when they (as opposed to Air Sheep) did THOROUGH due diligence of AN's financial accounts!
Ansett had been window dressed by Eddington - the abrupt turnaround in such a short time was too IN-credible.
And then HE left hurriedly!