THX, Graffiti and Star Wars were all made my a hungry, young director who wanted to tell his own stories. Doesn't matter that they were all different stories or different kinds of movies. They all came from the same creative spark.
Now that spark has been extinguished by years of resting on his laurels improving the special effect industry instead of his own directing style and techniques. Years of ass kissing, awards and tons of money have killed that creative spark.
And ROTS was no redemption in my book.....it was the same shit sandwich as the first two.