BEVs are still cars and create massive traffic problems. Cars are not guaranteed to be faster. We cannot all use cars for all of our transportation needs anyways, so alternatives need to exist regardless.
Humans burns calories all the time, even when resting. And you still need to exercise. Might as well power a real bike instead of a stationary bike. So this is a totally silly thing to worry about.
It's far cheaper to distribute energy via hydrogen than it is to distribute energy via electricity, especially over long-distance: https://docs.nrel.gov/docs/fy22osti/81662.pdf
We will likely make hydrogen where it is cheap, and then distribute via pipelines or other methods to where it is needed.