I guess if you want to ride an electric motorbike, you will need to register it and get a motorcycle license; and follow road rules relating to motorcycles. The bar is higher because the dangers are higher.

Yes but unassisted the mass is significantly reduced and an effort required to maintain speed. The main problem is the motobilke tier ones that dickheads, mainly kids, are using. Dyno units probably cost much less, especially long term, than healthcare cost associated with these things. Not just from them striking people but kids that lack the brainpower and experience to operate vehicles on the road, or in general.

You can pedal faster, but you cant speedup as fast as e-bikes or e-scooters. Only illegal bikes are to be destroyed.