Why? Wouldn't that be a lousy PR stunt? Domain services are the keepers to your most prized possessions and Google's let someone buy their own domain creating this nebulous set of thoughts to where many might think this allowed the person to control google.com itself.
Its just funny that it was an ex-googler buying google.com from Google Domains. and they happened to state the price ($12) in the ad errrr article. relax people. downvotes? come on.