Its an insult to see a fully realized and secondary world like the original Star Wars as a rough draft the way Lucas does. He is entitled to his very wrong opinion. Along with convincing himself Han always shot second.
Its kind of insane that he never liked the movie, the one that shattered box office records, made him a multi millionaire before the age of 40. Put Lucasfilm and ILM on the map. Changed the entire focus and direction of the film industry towards blockbusters.