We're only reading a summary of the paper because apparently the authors aren't confident enough in its quality to release it publicly.

You can't claim that Google dismissed this paper out-of-hand while simultaneously saying "oh, but it's too much of a draft to release publicly". Uh, if it was too much of a draft for the public why shouldn't it be too drafty for Google? Are we really pretending that Google has lower standards of quality than the general public?