Cabin Crew are in the middle of a dispute at the moment.....try and get your heads out of the pilot universe for a moment...its not the real world.
If a crew member wants to get off the aircraft because some Captain insists on leaving crew down, then thats whats going to happen. I have it on good authority that on the flight in question 7 crew would have walked off the aircraft if the pilots attempted to leave without the full crew compliment. Captain,God whoever can do nowt about it. No full crew compliment...No flight..End of story