Meh, sounds like a gimmick to me.
Doing something entirely original is almost always worthwhile, calling it a "gimmick" cheapens it. What is a gimmick but a hook, and when was the last time something was creatively or financially successful without a hook? Hmmm?
I'm not saying it will be an amazing documentary that changes the world, but it will be an interesting perspective and that is always something to be curious about.