Could be liability or insurance issues.
The new rules:
If you ride a street legal, licensed and fully insured e-motocycle to EAA to camp in Scholler, you'll be turned away because e-motocycles are now banned in Scholler campground. But you can ride a Harley, camp in Scholler and ride it all through the campground, no problem. That makes zero sense, they really thought that one through.