Taking a look from the other "what is a bicycle" side, this thing fills an interesting niche: even when you only have to pedal for 1% of the power in street mode, you're still pedaling, so in many legislations you'll be a bicycle by law. In that sense, that thing has a law switch to toggle between motorcycle (that you could also ride on bike lanes) and bicycle (that you could take on the Autobahn - wat).