I think the aim of this company is to be bought out by Amazon with all stock and production capacity. After that a single unit won't see the consumer before everybody in fulfillment centers has these on their feet.
My concern is this could probably be a major liability. Strapping all your employees to electric roller skates that make them move faster seems like it could be a recipe for disaster if someone takes a spill at high speed. Especially since a jury would take one look at those things and see something closer to x games equipment than like “enterprise mobility device”.
7mph isn't exactly a 'high speed' and a 3 meter breaking distance is better than running
It's a little faster than a jog, it would be a pretty good tackle and if the other person landed wrong, game over. With running at least you can juke out of the way laterally.