I don't think (as I said) the guy was intending to chase around the world protecting his copyrights, he was trying to show the absurdity of the definitions that copyright law depends on, and in that sense what he did refuted a priori your comment.
You use the term "act of creation" as if he didn't engage in it. Not sure how you can claim that he didn't create the melodies, he did, doesn't matter that he didn't ever hear them, neither did Beethoven (you get my point). If he had any musical training he could credibly state that he was creating a Philip Glass style composition exploring the space of melodies blah blah blah. You don't think a skilled musician could characterize and categorize the different elements of this work? If he was serious about it, he could call it his ring cycle and start playing it, all the way through, a one hour performance a week.
And then I pointed out, and you ignored, that even if he didn't go out and claim copyright infringement, there is still the point that he insulated himself in a certain way from infringement claims from others.
I think he made an interesting philosophical point, I think you should chew on it in a more interesting way. In a case of an actual claim of infringement, he created lawyer fodder that could drag through courts for years, had he been a musician.
No, I don't think he overturned copyright law. To a large extent, judges make decisions based on practicalities more than they do on the letter of the law. The letter of the law comes up when there are colliding practicalities, and ambiguity in the law. Still, I think it's a more interesting thought exercise than you are giving it credit for.