Earlier quoted context omitted.
That is nothing unique to Tesla. If they were serious about full self driving there wouldn't be any reason to bother with autopilot.
I'm amazed that you can agree it would drop rear-endings to near zero, and then immediately say there is no reason to bother with it. Do you think a level 4/5 system would be done already if they hadn't made a level 2?
You can have automatic braking without having such an unsafe system.
Other brands do...
It isn't ethical, not that I expect them to care. But I don't think a sane company would play so loosely with peoples lives when they are fully dependent on complete trust when they launch something with full automation.