We're not talking about pilots, gents. Bringing that up great debating technique, but it's false, and I suspect that those who are using it know it. In services as small (and "growing" smaller!) as the ADF, surge capacity is vitally important. This allows movement of people out of their primary speciality into other roles, if only on a short term basis, in times of crisis.
Whether those-who-must-be-obeyed like it or not, this political correctness imbecility of jobs for the girls reduces that capability.
When it comes to boots on the ground, the first grade footie team analogy is spot on.