Boeing seems to have no problem with getting the blame here?
Just a guess in the dark ... Boeing can take a little bad publicity like this as it will not dent them - they are big enough. Also, there
was a strike (No?) and it is better for Boeing to take the
PR hit than their customer. Also, Boeing might want to use it internally, "Look what you nasty people did to our shiny reputation and got us bad
PR." (irrespective of that being the truth and this comment may have more to do with my cynicism of global business.)