After reading the comments at cdixson.org by the author and reading openness article at Google, it seems like author is simply saying: "I agree they won't open it. But then they should stop talking sactimoniously about openness." which I agree with as well.
Here is an interesting perspective: "And millions of websites will have to continue blindly relying on a small group of anonymous engineers in charge of the secret algorithm that determines their fate." Have you ever been delisted by Google? Is there a transparent process to get back on the list? Perhaps transparency is what Google needs the most at the moment.