This is also what I think. They are just for anti rotation.
You can see in Dale’s thread where they don’t do anything as far as the driver is concerned.
I ran High mode continously for about 20 minutes walking around. It’s a slightly chilly 60°F and windy night. Heat was not even a concern and it didn’t step down. It was just barely warm. Should be fine.
If left in a hot room with no airflow it would surely get warmer, but even then I doubt it would get so hot that it would need to step down.
By this, do you mean buying it on Amazon US? I have not heard anything about it. Sorry.