Or have they before and we just haven't witnessed it yet?

Oh I was agreeing with you, I was going to go on about how it would be a mindless story if it was a 1:1 concept like that, and not very fun to play through because you don't have replayability imo

Imo you can NEVER make a game the same way as a book, why? Because freewill, no player character is going to do the exact same thing the character of the book or show would do, close? Sure. But same thing no. Even if they follow the same story, the PC is going to do things differently.