Not really, the negotiation team gets the best deal that can get that doesn't involving going on strike and they present that to the union which is then better informed for their vote.
Correct rejecting the companies "best and final" contract is basically par for the course in union negotiations. The company is banking on being able to outlast the strike to get a better deal than the union would otherwise agree to or betting on the government coming in an kneecapping the union and forcing the workers to accept a deal like happened with the ATC and train operator unions when they struck (striked? struck doesn't sound right in the context of a union strike for some reason...).
