All because a few hundred pilots operated as cabin crew during the recent strike to keep the airline flying and prevent it from going bust. They shepards in the union pass down the story that "many thousands volunteered". They truth is a few hundred did, less operated why? Because C/C came to work and the other volunteer C/C were fellow unite members, talk about solidarity hey? The main issue really is that the viscous and vile C/C (to which I think there a very few) rile up the rest hard working decent crew. Being on the aircraft just makes the pilots an easy target. He ho you can't win everything.
I doubt it will last as the high value routes will soon become crewed by mixed fleet so they've solved the issue themselves in many respects.