Kevin, you can't win the Derby, if you start the race at Aintree, and everybody else is at Epsom!
Yes they voted by a clear majority for strike action, although most of those who voted did not envisage a strike of that length or on those particular dates.
So the union shot itself in the foot big style, and may find they get a smaller majority/turn out next time they hold a ballot.
Those people pay their dues, and they should expect their union to represent them efficiently.