A random person's video carries more weight than a random person's unsubstantiated claim because video is, to some degree, evidence (it would be possible to fake, but would at least require some work).
But there is no real evidence. He shows a video of a garden variety bug/error with resistive touch screens, then makes some sensationalist claims in his comments that are completely unsubstantiated.
Skip to the relevant part of the video [53 second], and the guy clearly touches the bottom of the McCain section with his finger, then rolls his finger down. My point still stands though: The user sees the wrong selection immediately, and can notify someone or try again. The only scandal here is that this is even a story
