Google's Homepage and Safari

Chrome's updated new tab page reminded me of a Safari feature. If you try to change your homepage to google.com in Safari for Mac, you get this message:

"Are you sure you want to change your homepage to Google search? You can do a Google search directly from the Safari search field, without going to the Google webpage."

Apparently, it's hard to convince people to use the browser's search box instead of Google's search box, especially if the address bar and the search box are merged.