Reading Morris's explanation below the video at the link, I see that — spoiler alert! — everyone in the video is actually going to vote and they were prompted to think about how people who don't vote must think. I'm seeing that after watching the video. So to the extent that these people seem dumb... ish... it's at least partly that they are attempting to embody the persona of other people, who they probably think are dumb. So we're seeing a subtle blend of opinion about the nonvoters.
At the end we see that the video was produced with Our Time, and I assume the intent is to improve the turnout for Barack Obama, but in style and substance, it's nicely neutral and quite amusing and charming.