I agree that nothing is safe anymore, but I feel it's the Inglenook fireplace in the Stobart Jet Centre that would come under threat if expansion to over 5m pax p.a. ever became a realistic prospect rather than just big talk. Relocating the Jet Centre elsewhere would surely make more sense.
Don't forget, plans are already approved for extensions either end of the existing terminal, and they will help the current situation. It is possible that the work required could be completed for a sum less than Mr Brady's proposed bonus.