The people who do the market analysis, the route planning and the scheduling don't have anything to do with the process of trying to avoid the F/A strike. They need to move on as if no job action was possible.
Now of course the company *does* indeed face a possible job action, and undoubtedly people on both sides have done contingency planning in case things are not resolved in time. Short of a long, disasterous strike or CHAOS session (which is certainly not impossible) planning should and will go on as normal.