Actually, worked in corporate (now ashamed to admit) and this was not sensationalistic at all. If anything, it downplayed the personalities of the Sacklers. It also didn't fully show how completely manipulated the sales and marketing team became very quickly, and the reason for that is the pay was so very high and unattainable anywhere else. It kept those earning so much in a bubble of ignorance since their pay was never again to be had.
The amount of sales team members sleeping with each other was not clearly depicted, either. The full leadership team that was accountable almost as much as the Sackler family was not fully depicted.
This was a horrible company that was really, really good at paying off people, firing those who they perceived as a risk with a document that prevented whistleblowers. They had it down to a SCIENCE!