I think the low scores are for this being too long. I just dont think they stuck around. Part 1 covers familiar territory covered in Dopesick along with earlier Doc productions. At end of 1, I couldn't imagine what 2 had left to cover. Part 2 covers the detail on distributors and pharma companies imitating Purdue biz model and tactics. It was news for me the doc gets into SEC companies having boiler rooms dedicated to defrauding insurance companies and the intricacies of seducing and bribing medical professionals is detailed here where other sources merely reference.
Without sensationalism Gibney documents a big, depressing account of irresponsible corporate greed and their minion supplicants. Drug dependecy moves to a white, mainstream, population thanks to sophisticated, deceitful marketing. Big, big story.
Profiteers blame it on the moral weakness of its victims. Spit in your hand, swish the pill in spittle , remove the time release coating, Rush Limbaugh taught me that (sorta).
FWIW, 2010-13 i worked in many rural areas VA-ME and kept seeing front page overdose stories, spikes in rates, narcan for cops, etc.