I know everyone loves to glaze ShB and its story nonstop, but as an ARR enjoyer, the StB patch story set up some of the most hype plotlines imaginable, and imo none of them were done justice during ShB or beyond.
My heart shattered when the Black Rose and Emperor Varis plotlines were resolved offscreen in cutscenes, and I will never forgive the writers for throwing away the Gaius redemption arc that was set up so beautifully from the moment he walked towards us with Alphinaud in his arms, Ascian masks in tow.