Yes, but 10-15 kg is still comparable to a regular bike or a heavy bag of groceries. I rode a 19 kg one (50 km range, street legal), carrying it up to the third floor at work wasn't a problem.
True if it's just point to point commuting to a place with safe storage. But then I can't take it by strapping it on my backpack and going to shops, etc where a bike would get stolen.
