For a generation there was excess supply.
Coincident with this was the rise of HR drivel.
HR captured control of the process, in their never ending mission creep. Excess supply meant that they could grow fat cutting terms and conditions.
That time has finished.
Pilots costs lots to train, take a lot of time to do so and not every person has the aptitude.
It is called mean reversion.
Airline HR/Ir is on the wrong side of the trade this time.