You made me think about this a little more, but I still don't quite agree.
I thought of two novels that I enjoyed:
First, The Curious Incident of the Dog in the Nighttime. I have no recollection of who the author is, but if I learned that the story had been computer generated, it would bother me a little. So... "point to you."
Second, Rita Hayworth and the Shawshank Redemption. I know it was written by Stephen King, but the plot is so elegant that if you told me it had been computer generated, I don't think I would care. It's simply a great enjoyable story.
In the next 10 years, if the world is flooded with computer-generated novels that are hugely popular and the vast majority of people enjoy them without knowing their provenance, do you think those people will care that they are enjoying something that doesn't meet your definition of art?
edit: to be clear, this is not a position that I enjoy taking. There's something "Brave New Worldish" about it. Or it's a depressing version of the Turing Test.