It’s not self driving though, you see him consistently interfering with it throughout the whole video.

Are you referring to his hand position? If you are realy scared you should definitely have the hands on the wheel anyway so you can react faster.

He didn’t disengage though you can see the blue icon at the top of the screen is the autopilot it stays on all the way.

This is a simple “stay between the lines” machine and I’d be surprised if Tesla didn’t explicitly use this road as a testing case because multiple people have taken their cars on it since the self driving feature came out.

This is correct this demonstration isn’t as impressive it was on a clear day with perfect visibility and perfect road conditions no requirement to read signs, cross intersections, perform overtakes etc.

Also this particular road seems to be relatively well maintained with very visible lines. Despite the challenging turns this is the perfect dream use case Tesla dreams about.