> But docked e-bikes can get you the same effect as long as there are actually docks at the tops of the hills. I find that Capital Bikeshare is really good about placing docks at bus stops and train stations and having a high enough dock density...

This is an entirely reasonable point and that's likely where Seattle's bikeshare system failed. The operator was borderline incompetent, but also siting docks in Seattle is very difficult because of the propensity for car drivers to vocally oppose any efforts at space reallocation. It's getting very frustrating, especially now that they got a Mayor elected and a head of the Council's transportation committee who are both quite pro-car.