It might not be much safer than regular bikes, but electric bicycles are great for expanding the non-car commuting range of the average suburbanite. I ride a scooter-style ebike that has enough cargo room for a few bags of groceries and looks more like a Vespa scooter than a 10-speed. The headlights, tail lights, and turn signals make me feel safer than my mountain bike. Of course, cars don't pay much attention to mopeds or motorcycles either, so it's probably just a psychological safety net.