I often cycle to work and have no problem passing the ebikes. Cyclist can eaisly exceed the 50km posted rate and not need to worry about battery dying. Unless a person has health issues or physical limitations - I really don't see the point of having a e bike. It might be a passing fad, just like the moped was 30 years ago.
The Moped wasn't just a passing fad here, they were simply legislated out of road-legal economic existance.
As first created for Post-WW2 Europe, they made perfect sense in countries rebuilding with scarce resources and disposable income. When they really became popular here in the early 70's, it was the gas crisis that made them popular here, for the same economic reasons.
Then people started crashing with them, causing damage, disregarding basic rules of the road, and some mopeds came in country, that could truly be considered unsafe to uncrate, much less put on the road... sort of sounds like the current e-bike climate, right?
The government stepped in, mandated mandatory insurance, plate fees/road taxes, and age restricting use through a basic operators license requirement. Pretty much concurrent to that, gas cost dropped/supply stabilized for the next 2 decades, and even poor people could afford cars again. People walked away in droves, as a result. As a means of transportation, and a lack of manufacturer's willing to take a risk on a hostile regulatory market, and the supply pretty much dried up. They no longer made much "economic sense".
The only thing preventing e-bikes from the same fate really, is the current sustained poor economic climate that we are in. Politicians just don't like empty beer bottles being winged at their heads, by irate ex-e-bikers unable to return their empties.
Edit: I love my "china girl" motorised mountain-bike, which is closer to the true classic moped design as any other, and i've got several small capacity Honda minibikes that could be road legal at one time.. but modern motorists, they be crazy! Times have moved on, from when i'd consider a 60 year old design with limited power, is safe in a modern day road environment, when they have to directly compete (follow rules of road, lack of safe defensive driving potential in power and braking) with the crazy. I consider it the same, with e-bikes.