It misses a narrative coherence probably because it wants to speak to everyone but it doesn't know how to do it unanimously: sometimes it feels like a commercial, other times like a strong, detailed and committed manifesto; sometimes it's to confusing and ripetitive with too many numbers, charts or statistics at once other times it's too rushed, superficial and dull feeling like a kids show; some interviews are very interesting, well scripted and important, other, less useful, could definitely be avoided.
So as a documentary it could have been made better especially because it's extremely important but at the end at least it's there and it inevitably makes you realize a lot of things and think about them, despite all the technical problems, and that's more important.