The documentary is certainly well made and comprehensive but it does not add much the facts already known. The case was very muddy 10 years ago and still is: the victim was a weak witness (as in most of these cases) and the powerful forces deployed by the defendant made it even muddier. So the acquittal was - and is - morally outrageous but legally inevitable. As for the possible plot behind the event there was and still there is no evidence, not even circumstantial, that anything like that had actually occurred. Which does not mean it didn't, just that one, if willing to go down that path, must embark into conspiracy theories.
But there is one fact that was and still is incontrovertible: DSK was unfit for office, wether in business or in politics, and this affair helped take him down. So it was a good thing.