Unless someone is forcing me off the trail or something, why should I care what people ride?
If it keeps people out of cars, and there are fewer cars on the road, that is a Good Thing, ipso facto.
My wife got a class 1 e-roadbike a couple of years ago, due to hip and knee issues. It helps her a lot, and inspired her to get a nice non-assist titanium road bike.
I recently built up an e-bike conversion. I haven't really used it yet, apart from test rides, but I set it up in such a way (30T front sprocket) that I doubt I am going to be blasting past anyone.
There's a big difference between the above examples and Sur Rons ripping up the trails, complete with their vestigial pedals.
A little bit of nuance here could help.