"Physical activity gains from active travel are similar in e-bikers and cyclists."
E-bikes make people who aren't fit enough to ride muscle powered bikes to start doing moderate exercise on local trips they would used cars for before.
Sure if you assume that someone switches from conventional bike to e-bikes and continues to only travel A to B like before, yes it's a net loss in exercise.
In the study however, they found lots of people substituted driving or public transport with e-bikes, which is a net gain from the reference point.
Even for people who had conventional bikes, getting a e-bikes meant travelling with e-bike more often and longer distances than with a conventional bike.
Signed, former Cat 2 road racer
I suspect not. Even though ebikes are common now, I often hear this comment. Ebikes assist your pedaling; they don't pedal for you. (Well some can pedal for you but you learn quickly that if you let the motor do all the work you'll run the battery down and then you will have to do all the work pedaling a 65-lb bicycle home.)
Lots of people seem to think if a motor is present, then the motor is doing all the work. Ebikes are not motorcycles. What the motor actually does is make the hills less steep and less long. It's a lowpass filter for terrain.
I realize that you really, really want to think that we are talking about electric motorcycles, but you obviously have no idea how e-bikes work, so I see little benefit in discussing it further. My HR monitor says I get plenty of exercise on an e-bike.