This is a good point that I did not think of. Google maintains the paper was not up to their standard. The authors submitted the paper to a conference. And now,

This is a good point that I did not think of. Google maintains the paper was not up to their standard. The authors submitted the paper to a conference. And now, one of the author asks MIT Tech Review to not publish it because it is an early draft. Gives some credibility to Google's claim IMO.