Toronto Cycling

In Vancouver, the battery needs to be detached from the bike before putting it on a bus rack. Otherwise if a normal bicycle is allowed, then a electric bicycle is allowed on transit.

https://www.translink.ca/rider-guide/bike-and-ride-on-transit/bikes-on-transit

Toronto should make the rules similar. They can ban it if they want during rush hour period, they can ban batteries not made to standards accepted here as dangerous goods, but otherwise it's really not any less safe than a normal bike.