I'm afraid I think you'll find that Jet2 are under the impression that pilots are still in cheap plentiful supply
Doesn't really tie in with them doing a recruitment drive in October for a March start and TCX putting all their seasonal pilots onto 100% contracts for the first time.
HR Departments and the management pilots at all low T&C airlines will have a rough idea of who has applied as Emirates send for references before interviews. They will also be aware that BA and Virgin will open recruitment soon and DHL are starting too.