The strike vote is a vital tool that the rank and file gives to their negotiation team to call a strike if the negotiations tank. Now, again, as I have said before, the "final offer" should be presented to the rank and file and if the rank and file rejects it, it will give the negotiation team more bite at the table. But, admittedly, I do not know the what the minimum "floor" at the table would be to actually bring back to said rank and file.