This is a fairly well-researched account of the events that eventually led to 9/11, and more so of what an absolute mess the aftermath was.
What this means is that the makers do not shy away from what is of course a universally known truth - that Islamic fundamentalism was fostered, nurtured and funded by the USA. It does pick a somewhat convenient starting point - the Soviet invasion of Afghanistan, which was itself the culmination of a series of coups and counter-coups, but it does show how the pattern remains the same since then: no one in power cares about the long-term consequences of their actions.
This is also evident when discussing the war in Afghanistan: most inverviewees agree that there was no clear goal there whatsoever - despite of whether they agree that there was reason to go to war, the plan of action was non-existent. Indeed, apart from eventually assassinating bin Laden, almost nothing that the US did in Afghanistan had anything to do with 9/11.
By the way, the series is quite critical of Obama, so I am not sure what some reviewers are arguing about. That it criticises Bush first? That's not leftist propaganda, people. Bush and his cronies (and anyone else you want, Obama, Trump, just add a name to the list and you'll probably be right) are guilty of crimes against humanity - this is a pretty widely accepted view worldwide.
The political analysis aside, it would be a mistake not to point out that it also manages to give a respectful and harrowing account of the 9/11 attacks themselves. But it is a terrible mistake to stick to this only. The signs were all there then. Other signs all here now.
