It's worse in non-g### contexts. These query-less queries show up in piwik as Referring Sites instead of Search Engines. So you think Woo Hoo, people are sending me visitors-- and then you look and it isn't people, it's "google.com".
Imagine getting a referral from a professional colleague.
"I'm sending you Mr Smith. You may be able to help him."
"Sure. What's his problem?"
"Oh, I can't tell you that, it would be invading his privacy. And he's mute and illiterate, so he won't be able to tell you either. But I'm sure you've got what he's looking for."