"Nepotism.... For example, outrage at back-dated seniority for a recent block of cadets sent to the two-year 'industry experience program' merely resulted in a re-wording of the deal; QF hired them (ie seniority number) then 'allowed' them immediate leave-without-pay for two years. "
Seniority nos weren't back-dated. They were issued shortly after graduation. The complaints have been over the fact that there hasn't been any formal statement from QF that cadets were employees (although de facto in reality) and therefore should or shouldnt they be entitled to seniority. These matters were discussed at length previously on this site.