I haven't read the articles because there is no link to them, but in my city there would be very valid reason for complaint about ebikes because the same sociopath tendencies that people exhibit while driving cars are moving to ebikes. These fuckers ride them like goddamned motorcycles, except whooshing right next to people on trails and sidewalks meant to be shared or in some cases, primarily used by, pedestrians.
If I were to guess the average speed of ebike riders I would say around 25 mph and you usually don't even see any pedaling.
I've learned to despise them because what's happened is that the people who don't want to deal with car problems but are too lazy to pedal have brought car-type problems to spaces that used to only be shared with bikes.
The problem is obviously with shit actors but what can we do about it? Until there are laws enforced about speeding and riding like an asshole, nothing will change. Which in my mind won't happen without articles or something else bringing it to the attention of people who don't actually deal with these assholes.