Anachronistic Satire not a lot of laughs
I don't feel this is all that funny. Notice that the people you've mentioned who will attempt to correct your history are the only people who will realize your work is historically wrong in the first place. Therefore, the audience doesn’t think it’s funny that it’s wrong - they think it’s a problem. Maybe if it was more off the wall, like Iron warships or Vikings. The trouble is someone could possibly believe this, seeing that it’s all taken from the 20th Century. Also, you shouldn’t clip your background sound so suddenly; try editing in fade-outs. Other than that I think your style is decent enough, and the animation is pretty sound. Good luck on your future projects.