Unless the test subjects were looking at a blank screen these results are misleading. Most websites are designed with visual focus at the top left (logo) and middle of the page, therefore people look there first because the design leads their eyes there. If there is no visually leading content on the page, I imagine the results would be much more random-looking.
He did submit it to PHP. However, it seems the fastest way to get bugs patched on projects like PHP is to publicly announce the bug and let the public push the devs to fix it. Otherwise the report just languishes in the bug tracker and never gets fixed.