"Immersed in the world" does not mean "the world is exactly like our's." CP2077 is set in a world where technology has advanced, where people are often part machine, and where corporations rule. Technology for them is even more intrusive than it is for us, just like it is more intrusive for us than it was for our great-grandparents.
You are set to have something exactly like real life, while ignoring that the world in question is not the world we know and that it may involve people doing things we simply cannot. Which, in turn, means dealing with technology operating in ways it does not in real life because it was designed for this greater intrusion, much like how technology now doesn't operate like it did back in the 1430s.
Also, between the pair of us, which one is it that is capable of adapting their thinking to take into consideration that your elevator example may be irrelevant simply because technological advancement has made it so? That was why I used a railing example originally; it's very, very unlikely to change even in this particular setting.
Also, the other problem with your elevator idea: It's a directed animation. Sure, your character is playing the animation of pushing the button... and while it's playing, the people who are shooting at you have tossed a grenade through the door. Oh, yes, you get a bit of button pushing... and then you're reloading a save because you died. That's why they don't do it; it's an anti-frustration measure that comes from the fact computer technology is a lot more limited than people think it is. Maybe in a VR version of the game what you want can come about, but not in the ones you'll see on a standard desktop.
Also, as much as you don't like it, RPGs feature combat. This one has already been shown to feature FPS-style gun mechanics. Those mechanics have to be designed around, and that does mean some "immersive" features have to be sacrificed because reloading fifteen thousand times due to death is far more immersion breaking than not seeing some animation of your character pushing a button.
OOOooor you can use point-to-point animation with IK for the hand that is pushing the button and use the other free hand to grab the grenade or do whatever you want from your current position and if you want to move as well - you cancel all animations, my dewd.