If a HKA pilot was working on a work visa and gets sacked my understanding is that they loose the visa and then have to apply for a visitor visa to remain in HKG.
If a HKA pilot has a
PR ID or HKG Passport and is fired they would have grounds to oppose the issue of work visas to any of the CX Based pilots who are now applying for work visas to return to HKG. CX's employment record since the introduction POS18 has established that a CPL and weak pulse is all that is required to fly for CX - so they can't argue that the HKA pilots are not suitable.