Why do we want to recreate historical battles at all? We already know how they ended.
The reason that historical battles are fun to play is because, in a way, history can be altered if the other side wins. Plus, it's always fun to kind of get a feel for what the battle may have actually felt like to be a part of. Obviously, it's just a video game; we'll never actually be able to feel exactly the way they did. But still. I think it's worth giving it a shot.
On another note, a shield wall event might be in order for those players who have yet to try the mod.