I don't think they can generate even half the torque of this, and the balance point is different. Maybe something half way between a belt and nothing at all. Just enough to slow you down if case you're about to fly off.

Maybe not. This one seems to have some kind of control loop for steering, probably based on contact forces. The control loop surely is designed to catch you and keep you upright before the contact force gets too low, no matter how hard you try to break. (As opposed to a joystick-based break.) But sure, it won't prevent you from driving into an obstacle.