C'mon, "The Force" is just a exaggeration of Ki powers, all "Jedi" order was based on japanese martial arts. Yoda is a caricature of the oriental master. Guys with swords in robes fighting to free the princess in a fortress? Yeah, creative...
But the text is funny
Too true, but Lucas' behaviour isn't all that uncommon. Fist Full of Dollars was really a knock off of Yojimbo, after all.