To activate teh hidden URL bar, users will also have to right-click a tab and select "Hide the toolbar" [sic]
The sources quoted in this article in no way support the conclusion present in the title. As phlux said, other browsers have enabled you to turn off the address bar. Are they trying to "kill the URL" too? No, and neither are Google.
This article comes off as little more than sensationalist (albeit apparently effective) link bait.