I think you're not giving enough credit to how a game like Detroit: Become Human gives you a ridiculous amount of branches in the narrative. You can't do that in a movie or live action TV episode.
My experience of that game was drastically different to what happened in my wife's playthrough.
I'm not saying every game manages it well. It's always going to be an illusion to an extent. The genre still doesn't have all that many games but there's still improvement every year or so like any other genre starting off. But I think it's still a unique thing only video games can provide and worth pursuing.
My wife isn't interested in RPG's and she never will be. Some people do just like making decisions in a story.
The branching narratives have merit and are a valuable contribution to game design, but ultimately the effect is a game that feels almost identical to watch as it does to play, and an often limited number of final outcomes calls into question the actual significance of all those choices you made.
I think that depends on the player. Choosing dialogue choices and making those choices yourself is a different experience than watching someone else make them. ---