Driver enabled HighWayPilot and removed his hands from the steering wheel. Looks like the car tried to stay within the road marking and didn't see the barriers.
yellow line on road seems to perfectly align with the yellow barrier. camera didn't identify the wall. I don't think they have radar to identify solid objects, do they? Isn't it just camera? I can't remember right now and too lazy to look it up.
Teslas have a serious problem avoiding stationary objects in traffic lanes, especially when following traffic. If you search YouTube for Tesla accidents, there are a big group where the car is following traffic in its lane and it doesn't yield to some object in its lane. Over and over again.
I don't know what system they're using, but they really need to get a handle on it. For as many accidents as they avoid, not hitting stopped objects is pretty important from a safety perspective.