In pedal sports where the advantages of fitness & talent are microscopic, I still can't see the motor being an even leveling of the playing field for the elite. Richie is punished in battery-enduro because he has the same "output": motor as his competitor. A woman who is slender can be punished equally. The mopeds have a sweet spot for rider (they should be called jockeys) weight to power ratio. Above or below that threshhold, your competitors quite literally have an easier race. It is quite literally the most unequal sport I can think of.