This is not a strike issue.
The cc representatives did their best to point out the gains of keeping the FS scheme.
I can fully understand the company's desire to limit their potential losses but then again it was their decision to take a pension holiday a few years ago.
There were also very good reasons why they should have held on to it for new joiners (it is a long term investment and there is no reason why growth rates could not be a lot higher again in 10 years time). Britannia management recognised this.
My view is that it is a bad (long term) decision by management but an easy (short term) decision.