In all fairness to BMED crews, it wasn't what they signed up to either when they joined that airline. Yes, BMED would have gone under had it not been for bmi stepping in, but at the same time they've seen a massive change in their working conditions, so there was always going to be griping, bmi are not an easy company to work for.
I personally didn't see any benefit in a merger between WW/GSM given the number of new types to the fleet they'd be adding, operational complexity, a head office which would need to be disbanded and opening two new bases at airports with a strong EZY/FR local presence. It seems better to focus on existing bases and grow from there. WW have cornered a decent niche at BHX, and to a smaller extent MAN, and would be wise to protect them.