The sensible way to create a 'new' venture is not advertise it all - lest you end up having to make embarrassingly triumphant announcements along the lines of JQ HKG (etc).
The aircraft aren't built, or even designed as yet.
Can Qantas actually get enough of these unplanned, unbuilt aircraft?
Are there enough crews?
The various regulatory approvals (Flt time Lims etc) have not been (that I'm aware of) granted.
Have overflight approvals been sought or approved?
Union issues vis a vis hours etc seem a long way down that list, but they are by no means solved either.
I'm sure there are more good questions to add to those. Blaming Tech Crew might seem like a good idea, but looks preposterous when you consider there isn't a jet yet to do the job - let alone legally!