Something else that struck me about this, besides the obvious Jewish Revenge theme, was that it is very appealing on the level of these are Americans fighting for a cause that is not ambiguious in any way. It's been a while since you could root for Americans to succeed unilaterally in a mission not involving aliens or asteroids, so that was an additional carthartic element to it. Case in point, I watched the Hurt Locker right after.
It probably bears mention too, that the French in WWII have been heavily criticized by history - so I can see some French audiences getting some satisfaction in this revisionist conclusion as well.