This was the "don't ride like a jackwagon" part. My bike has a solid kW output, at least when the battery is full, but I don't zip down the trail at 26 mph all the time.
Sure, occasionally I pull a max-speed segment for hoots, but I don't do it anywhere near anyone who might be scared or injured if I mess up. My trail empties out pretty nicely once you're about 5 miles from "downtown" (of the city along the trail where I enter) so it's easy to find long open stretches to hoon around if you want without endangering anyone but yourself and others on your ride.
I have just under 1000 miles of riding on this particular ebike, and about 2500 miles total, so I'm definitely not an expert rider, but I have _some_ handling skills.
Personally I like the relatively unregulated hardware. I don't need my bike to decide on a safe top speed or power. That's up to me. If I am on the trail around people, I keep it below 15 mph as a rule of thumb. If I'm doing a segment on a road trying to dodge a half-awake car driver, I very much want to be able to pull up to 30 mph fast so I can GTFO from a bad situation.
If you don't like jackwagons riding on the trail, regulate that behavior, not their hardware. Just my 2¢, opinions may vary.