Nice piece of machinery, though. Boston Dynamics' humanoids were clunky electrohydraulic mechanisms borrowed from their horse-type robots. All-electric is now possible and much simpler. Schatft was the first to get this working, and they had to liquid-cool the motors. Don't know if Tesla has to liquid cool. They do that in the cars, so they certainly understand liquid-cooled electric motors.
I suspect that body balance and possibly walking were automated. It's hard to balance a teleoperated robot manually, and robotic biped balancing has been working for years now.