Another point I started writing and then deleted because of conflicted interest.
I honestly believe that the only way that QF & VA survive is if they pool together and operate flights in tandem, almost like codeshare partners, immediately. It is untenable for competition of any sort to be occurring in the aviation market at the moment. Unfortunately the reality is that QF will think they can outlast VA (and they probably can) so they won't be interested in assisting.
I am glad I flew VS a month ago and ticked a box. Because somehow I doubt the chance will be there in future.