Earlier quoted context omitted.
Very true. If you've never been able to cruise on a skateboard, you might not realize how much damage an unexpected pebble or sidewalk crack will do. Riding is a constant balance of scanning the pavement for inconsistencies and making corrections to mitigate them. I don't know if that's even possible at 20+ mph.
Your latter point is why I'm not really sold on electric longboards. Your control authority on a longboard is pretty low, and you need a lot of control authority to react to surprise obstacles/maintain stability after encountering one. Sure, DH longboarders exceed 25mph regularly, but they ride in semi-controlled environments (scout the descent for gravel etc before hitting it) and are exceptionally skilled. Putting…
Meaning the danger of pebbles is also much different.