Maybe, but the blame still lies with the union to a large degree. My experience with being involved in union disputes is that many people have an unrealistic view of what's possible. The union's job is to reign in that attitude and bring people around to more realistic options.
This they have failed to do and when you look at their rather timorous response to this ongoing situation. You have to wonder what they are playing at.
Despite Delta Oscar's optimism the Cabin Crew won't win this.