Because of course a propaganda book from foaming at the mouth, dictator-worshiping, and Anti-American hypocrite Oliver Stone would provide truth. /facepalm.
They guy made a documentary, and journalistically speaking, his work checks out. There are no factual errors in his documentary you can point to, so go on, call him a hypocrite or a dictator-worshipper (for which you can show no evidence btw) but know that you come off as an enormous hypocrite yourself. You've been programmed well sir.