So by the same token every film produced with violence in it would be made to make a point about violence? It is a part of the plot but not the turn upon which everything depends on. That is the part where Eastwood agrees to train her.
It seems you have more of an axe to grind about this subject than anyone involved with the film. Swank has come out and said she does not agree with the decision. Why would she star in a propaganda film about something she disagrees with?
I am reminded that you don't think it's the central point of the movie, but that's even what the stars in it are talking about.
Money?