You see? Humans are dumb. This is the same way our 'modern' society will react when we find out that humans are already a galactic species, but we are a lost tribe or some bullshit.
The article actually ends on a question mark (the guy that claimed it was fake was taken to court for slander). So regardless of whether or not its fake, it's a pretty fantastic spectacle. Even if these people are performing, it's an incredible piece of work.