I watched this in The Other Cinema in Soho when it first came out, with a continuous flow of red wine from the bar. I remember: the section about seat belts; the way he jabbed his pen at the camera; a terrifying piece of stock footage of a hydrogen bomb test.
I didn't see the Rummy one, but how could the director have expected that to have been the same? It was made less than 10 years after the stuff Rumsfeld was being expected to atone for actually happened; he was still smarting from effectively being fired and replaced by Robert fucking Gates; he was still tangled up in the unfolding present of those decisions he had been part of in Afghanistan and Iraq and, therefore, was still out to defend that record, which he can do more eloquently than people give him credit for and than he sometimes bothers to (he does do it in his autobiography, which somehow strikes a strange balance between elegance and brutishness).
