If the offer is turned down
I know there is the tactic of offering a little incentive to try and get the vote to pass with the threat it will be gone afterwards.
If the offer was to fail and there is enough time to make another offer before a strike would occur I would think pulling the ratification and not offering something in its place or significantly higher GWI would then guarantee a strike as everyone would be upset. It seems illogical if the goal is to avoid a strike.