Have you not heard of simulators, LPC, OPC. For those who don't know this is when the chap involved would have had to go through simulated emergencies ie. engine failure/fire, decompression, fire/smoke in the cabin, fuel leaks, incapacitation, double hydraulics failure.........need I go on.
He has been issued a Class 1 medical by the CAA not Flybe, they have just employed him because he is suitably qualified.