MakingaSplash has hit the nail on the head. Whilst nobody clearly spells out what exactly they are fighting for then the dispute will trundle along at a snails pace with no hope of a resolution
In this situation the company most definitely have the upper hand, which is why they are confident they can run a comprehensive schedule with the cancellation of only 3/4 flights.
The union, who strongly endorsed the last two offers, have now performed a complete u-turn and are calling for an all out strike which damages their already limited credibility.
The union reps have not received clear guidance from the members which has resulted in lenghty negotiations without a successful outcome.
As long as the workforce continue to go off in several different directions, the less likely it becomes that a remedy for this complete and utter mess will be found.