Ah, now come on!
Creating technical evangelists is one thing. Not hiring someone because they are smart? Total BS. You think that smart person brings a number of followers with them (from a mindshare perspective)? Yeah, they do. This was just a stupid, arrogant thing to say. Yes people, Google thinks you are dumb.
Always hire the best. ALWAYS!
And as my grandpa used to say: "bullsh*t on that noise!"