Less in the cities. They are mostly used in the biking highways between the cities. In the cities they are actually pretty dangerous and budget e-bikes like VanMoofs (with their annoying alarms) and Cowboys are frowned upon.
A good fraction of bikes i see in cities are powered. 52% of new bikes sold in the Netherlands have electric assist so even if they aren't the majority now they will be in a few years.
I think the whole "Van moof" backlash is a thing that only exists in Amsterdam and opinion pieces of certain newspapers that have run out of things to write about.
I don't see the same. And also have a biased opinion on the excessive amount of public space it takes in a crowded city. A speeding bike needs much more room to break for instance. And notifying the entire neighborhood about at VanMoof being slightly touched with an alarm is also improper use of public space.
E-bike != speeding bike. Or it shouldn't, at least. I don't have an e-bike but definitely wouldn't push it for exactly the reason you mentioned, I ride bikes to support my health not to get sooner to the hospital.