It's entirely possible that sending the audience out feeling lousy was intentional

Blending excellent reporting and strong storytelling, this is a disturbing film truly stranger than fiction

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.