Not really, but in a way? Hero units get a morale bonus, which helps you fight longer. And morale affects CS, so it does affect CS upward, its just not a direct increase to CS itself. I also just doubled this bonus in the last update.
I thought heroes also fought on the frontlines themselves and in doing so gave a small CS bonus (like 8-12) as a soldier in the unit, or something like that?
Aswell as the morale bonus.
