I see the hassle as more for DIY users than factories. Labor is very cheap in China so the added cost is nominal. I get a Bosh PAS is more expensive but not in the big scheme of things. I bet 90% of the people riding the 99% of ebikes that don't come with a throttle are happy and don't care about having a throttle. I like my throttle for all the reasons you listed but I still don't want a bike without PAS. Best of both worlds I guess.