I strongly recommend in the light of current developments that all pilots - BALPA members or not - have a thorough read of the Flybe policy on Harassment & Bullying.
Any attempt by the PBMs or any senior management to intimidate or threaten staff, however subtly, should be met with formal grievances. In the case of a director, this complaint should be sent to a non-executive director. Personally, I would write to all of them, and then ensure the same issue is raised at the Flybe AGM on 8 September.
They don't like it up 'em Captain Mainwaring!