Rereading this thread, and agree with your points, re that document.
It shouldn't just be trashed though by mistake or otherwise by someone going through my stuff after I crump - and I am even mentioning that word because I am going through a mass of my accumulated items in the process of cleaning out.. I'll give it to one of the Holocaust museums for their files. It may be one copy of many, or relatively of interest.
But this brings up Shoah. I think that qualifies as a documentary, even if it was over nine hours. Shoah has its denigrators as a film (I don't remember the whys right now), but it was a toughy to experience in the theater (took two sittings).
Totally changing film subject and tangenting - do you follow Errol Morris at all?