Wow, it's almost as if the game being made by Americans accidentally highlighted the imperialist and oppressive elements of samurai culture without a complete lack of criticism towards it. Even Kurosawa would be disappointed (typically featured the peasants and poor samurai as the primary heroes/survivors in his jidaigeki), Kobayashi is just laughing from the grave)
Really though, I guess we haven't learned from Spec Ops: The Line
Kurosawa mode is just a grayscale filter. Kurosawa films aren't gray. They're black and white
The sekiro mod is nice too because it swaps the in-game music for jidaigeki soundtrack pieces (from Seven Samurai, Hidden Fortress, Yojimbo, and Samurai Rebellion)