Everyone, please remember the most important part. We are talking about a highly experience crew who earns a very nice salary. I don’t question for one minute their decision to depart.
Posts such as this and Frank Duran's come back to the point about CRM - anyone in the loop is able to raise valid concerns that should be acted upon if there is any doubt - preventing incidents.
The aforequoted post demonstrates a complete lack of awareness of such, and while I doubt that Iberia have a culture that disregards CRM, it is apparant that for a crew to disregard the opinion of another professional who had a better view of their wings than them, is tanatmount to inviting disaster.
It remains a pity that CRM lessons appear only to be learned through disaster rather than potential "near disasters" that could have occurred...