I dont believe it the case that Google is returning the correct info though, and I believe attributing this primarily to zeroclick is wrong.

As the latter part of the article says, for a while now, google has filled the top of the page with tangently related videos, places to buy music, and other media, when all I wanted was the wikipedia article. They seem to have demoted wikipedia off the first page of many search phrases. I have to search wiki directly or add wikipedia as a search term to bring it back.

Google is not saving clicks, they are making me search twice.