Personally as cool as screen call is, if it's a real person and a telemarketer, then they just hang up as soon as they realize they're listening to a glorified voicemail.
I like that I don't have to talk to them, but it still wastes my time.
Update: obviously this is in the context of cell phones, not emergency contact numbers.
I can't speak for everyone else's experiences, but I never get phone calls. If somebody really needs to contact me they're going to message me through an app, or worst case call me through an app like signal. Phone calls simply are not used anymore among the people I interact with
Interesting take. Personally, a straight phone call from someone I know has almost always been urgent. A message followed by a call is somewhat less urgent. A message for low priority.