Tesla NoA will change you into correct lane based on your route.
This is done in some of the EU.
This is called automatic lane changing, even though you may need to use the stalk and keep your hands on the wheel.
I don't understand what your point is. Maybe I'm mistaken but I've seen Tesla Driver do automatic lane changes using NoA in his videos.
FYI, worldwide doesn't mean every country.
In fact, Tesla driver does a route-based automatic lane change at 10:20 here (on the Autobahn):
No. NoA will not automatically change you into the correct lane based upon your route. It may suggest a lane change, but it is up to the driver to manually act upon that suggestion. If the driver does nothing, no automatic lane change takes place. Its semi-automatic at best.
Early AP cars and NoA enabled cars can do semi-automatic lane changes in some limited scenarios, but these must be instigated or confirmed by the user to trigger the turn signals and must complete within a very clearly defined operating envelope.
In the EU, the car cannot complete "Route-based automatic lane changing" without human intervention. Thus, it is not automatic, it is purely assisted/semi-automatic even though it does provide some assistance, such as by suggesting a suitable, or otherwise, lane change. AUTOMATIC | meaning in the Cambridge English Dictionary. Two human interventions are required. An active intervention to trigger the turn signals, and a passive interaction to maintain torque on the steering wheel. The lane change can then proceed automatically. Without those human interventions, the only thing that happens automatically is the cars visualisation recommends the lane change.
There is one scenario however that I will give you where the car can do a fully automatic route based 'lane change'. That scenario is when exiting at an offramp and the car without human intervention, can signal a left turn signal (we are RHD), albeit far too late, then automatically steer into the offramp lane. What it does after that is pure luck, as it would often wildly ping pong up the off ramp, trying, not always successfully, to keep the car within the bounds of the outer road markings. Thankfully, this seems to have improved in the last couple of months, although not to the point that I would try it with another vehicle around. So that imho does not fall into the category of 'Done' as it fails its QA. Plus its not really what you were referring to when you said "Route-based automatic lane changing"
FYI - Worldwide means "existing or happening in all parts of the world" - its not country specific. In fact, the limitations of the UN regulations are so wide spread, that they would be in effect across a significant part of the world. Quite possibly in more countries than not. WORLDWIDE | meaning in the Cambridge English Dictionary
As for that TeslaDriver video. I think if you could see his hands, you will find that he will have had to intervene in that lane change otherwise it would not have happened. So not automatic.