I find the title highly sensational and misleading. Of course it was hacked in seconds given a prepared exploit, I would be shocked if it took the computer longer than that to execute the exploit code.
It did take FF/IE only seconds to 'get exploited', but it was more than a few seconds after the start of the contest... In short -- the guy with the Safari exploit went first.
They surely tested them all ahead of time, so why did anything take any longer than a few seconds?