We can focus on clamping down of "faux pedal ebikes" when the time comes, but for now it looks like we'll be throwing out everything to just to stop teenagers on surrons.
How much riding does it take to twist your arm 30 degrees?
You don’t see a difference?
The point in distinguishing the different classes is about where the bike should fit into the ecosystem. Should it ride on the shoulder, interacting with pedestrians and slower bikes, or should it ride on the road, interacting with cars and motorcycles.
It doesn’t matter how much riding it takes, it matters how fast and controlled it is moving compared to the other traffic in that class.