Some MRO's have planned type courses for connies only to cancel them because the QF guys have fronted up and saved the day. They also reduce o/t possibilities and pay rates. Supply and demand.
If QF need LAE's for a short term due to understaffing, is it OK for guys from OS to come down under for a working holiday.
Mainwheel, although not exactly the same, similar things have happened to the local Avalon guys over the years with all the long and short term imports. And most of them get a permanent residents' visa out of it as well.