Apparently, surveys were only sent out to those employees who could spell their General Manager's name properly.
I do agree that some of the moaners need to get out into the real world. I can understand the pension issues, yeah I would be up in arms too, but there are loads of other elements to working for NATS (hangovers from Civil Service days?) that are way and above what another employer would provide you.
By all means negotiate, but keep it in perspective!