Capt Can't:
Regarding Dash8 Drivers not getting into mainline, I hear you. And I sympathise with you. Ultimately, it costs the Qantas group a lot of money through attrition. There's also a great loss in skills and morale within the Regional subsidiaries. As for Australian Airlines, I think there were other issues at stake. It's often a point of great contention around mainline!
Regarding Impulse though, you're incorrect in saying that they've "slid under the radar". Assuming that you're referring to the MOU, they still have to undergo the QF selection process, just as QF guys have to undergo the Jetstar selection process if they wish to go there under the terms of the agreement. There may be an exception though for so called "hotspot" positions in Jetstar. They are only temporary.
WG.