ARWA,
Why would Qantas saddle themselves with an employment guarantee when they can fill courses without it??
Going back to the -50's/60's, as far as I recall, QF cadet schemes, by whatever name, never offered "guaranteed" employment on successful graduation.
Tootle pip!!
However in those days QF paid for the training, in which case the student is still better off even if QF knocked them back. Nowadays the student is risking circa 120k+ with no promise of anything.