That’s closer to real time than NBC “like live” Olympic coverage.
Perhaps, but when it comes to a control system, it’s a formidable hurdle. Watching something on a delay is no problem, but when you are controlling something, you need to respond to feedback, so any delay is problematic.
Just try playing any real time online simulator or game while you are running a file sharing app to induce lag on your internet connection. You’ll give it up after a minute, I guarantee :)