I agree with @Stalker0, and my own assessment that any warmonger can get enough GGenerals already. My experience doesn’t support heroic epic getting a free GG, or some bonus towards getting more GGs
What if, instead, the heroic epic boosted GGs, boosted Citadels, or gave instant yields on GG births? Having the epic come so early makes this really awkward though. I wonder if you wouldn’t have to nerf GGs first to make room for a heroic epic bonus? I also don’t think G wants to add more yields to the building; that’s why he took the scaler in the first place.
Maybe GGeneral/Admiral CS boost could have a 1-tile radius to start, and Heroic Epic could increase it back up to 2?
I don't mind moving the Heroic Epic around if we feel we want to change up the tech tree a bit, but why change any of the bonuses? I thought it was a very solid bonus before, why not move it, but keep the bonuses the old tried and true? What was so bad about the combat bonus and a little production?