It's a difficult one isn't it. Listen to the organisation who have historically been atrocious at negotiating and briefing their members also resorting to 'name and shame' tactics if people have the audacity to go against the unionistic will.
or,
Listen to the group who have just finished long, detailed negotiations with the company, using a fully independent, third party auditing teams financial appraisal of the companies financial state. Several in depth meetings with the company executive including both the CEO and the Chief Financial Officer. Also discussing the pension issue which has a massive bearing on the current struggle, which also has, upon the BACC, a member of the pension fund trustees.
Now, whose data could one trust? Even if the details aren't out fully in the open, as that would be sensitive commercial information, if one group were to make concessions to the company for the benefit of their members, would that be 'rolling over' or a rather pragmatic decision based upon current financial and economic data?
I'll let you decide.