Lane assist and being able to control shit via voice or steering wheel buttons absolutely has helped with safety though. While lane assist is not going to completely prevent you from serving off the road if you pass out, it will happen much less often. Of course you should not drive while tired but people still do pretty often. Being able to change a radio station or call someone from steering wheel buttons is a hell of a lot safer than fiddling with a radio dial or searching for a CD/cassette to play. A girl in my high school died doing that one.
Seat heating was not really a thing in anything but luxury models until pretty recently.
I do agree about replacing controls with a touchscreen though. Fuck that. That is absolutely less safe than having tactile feedback.