After watching DeWitt's youtube videos, I think that's just how he is. I know a few people that act exactly like this, they're always performing a bit, just have that engaging personality type. I think the theory of the video being fake is fun to entertain, but, if it really is a fake, I will eat my own shoe. I've seen meetings that look like this, extremely early ones, nothing where decisions were officially made, of course, but they were eventually made in more formal fashions down the line.