Again, not to take away by the amazing feat Tesla has achieved, but Google has had similar videos going back 2-3 years, and they are still not ready to release.

So either the problem in practice is much harder than a simple video can show, or something else is up.

Though, I think the real issue is that google wants to go straight for L5 (meaning 100% automated, and you can remove the steering wheel). As compared to an L4, which is more like 99.9% automated, but you still need steering wheel for those rare edge cases.