I don't know if I speak for everybody, but why should I go watch some random video about Brasil? I don't think the HN crowd has much interest in seemingly off-topic videos without the poster giving a comment as to why it's relavent.
I felt it was interesting to point out it's economic evolution, even as a potential market. Also, as far as i read from the webs, there's a lot of momentum on open source and inovation (Lua for example)