Reading your review, I found myself impressed with the depth you have provided within your response to a potentially difficult film to watch.
I studied this for my A Level Film Studies Documentary Module. At face value, you think a film with such a hard-hitting subject matter would be hard to appreciate, but the way in which Jarecki constructs and presents this to us is astounding. As you rightly say, he refrains from judgement and bias - a trait which is often implemented within a documentary - and offers a refreshing choice for the audience to determine who they believe.
If I hadn't come across this carefully constructed masterpiece through my studies, I am positive that you're balanced review would have persuaded me to purchase & watch it.
Well Done! :)