Let's not forget a matter of much greater importance, so far ignored by "analysts" and the unions,- and most of the staff.
On 24th January BA as a standalone independent company ceases to exist. It becomes a component of Spanish registered International consolidated Airlines Group (IAG) and has to fight for funds within that group.
Fortunately for the BA part of the business, Iberia is a similar, high cost legacy carrier with problems of old fashioned labour agreements, an indifferent overall reputation for service and although it has an attractive and under utilised base , Spain isn't actually on the way to anywhere other than South America for passengers originating outside a corner of southern Europe and South America.
It is time that the unions , shareholders and all other interested parties moved on and started thinking about this rather than wasting their time on relative trivials like this particular dispute. There's a tsunami out there!