Of course they won't get much sympathy from those affected by the strike (although, according to WW, not many people are affected. WW the AA of the airline industry )
Anyone who wants to make a point does so when most people listen. In the case of strikers, it's at a time that causes disruption because it impacts on the 'other side'. They would argue that if WW was not so aggressive and bullying, the strike would have been over weeks ago. So, they would argue, he is doing as much to cause the disruption to passengers as they are.
It takes two to make a dispute you know.