It is quite easy to mock this video which aims to explain the nuclear situation in Japan for children. It equates a nuclear situation to a character having digestive and fecal issues. In terms of marketing theory for online content it is pretty textbook...
1. It encourages peer to peer discussion and is very viral.
2. It presents information on an unknown topic by using a familiar topic as a vehicle to draw parallels from.
3. It is fun, engaging and the right length.