General questions and discussions.

Without a mirror tavern, discussing complete mirror symmetry is pointless. If you want a similar gameplay experience, nothing prevents you from creating identical starting heroes by replacing one of the heroes of the same class at the software level. And when playing with different heroes, the opposite is true: the more alternative starting heroes, the better. So, the question here is only about the relative strength of Galtran on a specific map. If he's not overpowered, why not unban him?

A mirror map is primarily a mirror map, and having identical heroes and factions is already a matter of personal preference.
Those who have played on a mirror map with different factions can judge which option is better.