There's a simple reason why the final season of HBO's incisive black comedy Succession has been so affecting to me, and it's not about the razor-sharp acting, the almost-prescient storylines centered on politics and wealth, or even the shocking, early death of outsized patriarch Logan Roy. And as Succession unveils its widely-anticipated final episode Sunday – which will play out over a feature film-sized 90-minutes — I find myself much more interested in how deeply that honesty will cut in the show's final moments than in the question of which Roy sibling might end up running the Murdochian mega entertainment company Waystar Royco (though my money's on Kendall — more on that later).