Well it seems I was thinking of the wrong kind of scooter. My bad. So these are the skate boards with a handle and motor? Looks like a sidewalk rider to me and not too far. Perfect for tourists on MUPS or BLs.
I don't see how there is room on sidewalks downtown, if used to get to work after the subway. Same as the problem with skateboards, they can be on the streets too.
I wouldn't lump them with bicycles either.
They shouldn't even call them scooters. How about SKITTERS.

I still think anything without a licence plate does NOT constitute as a MOTOR vehicle, e-bike or not.
That is just NIMBYism to me. 20 mph is 20 mph either way.