Fixing most of these things would make the game very, very unappealing to people who are not 'ULTIMATE ANCIENT HISTORY BUFFS!!!' like most of the people of this forum. Only about 0.001% (or something like that, I don't know) of the people who own the game probably actually care about when the Brutus family came along or whatever.

If you want accuracy, get a mod, rather than complaining about the accuracy of the game.

I do however agree about the Spartan and Macedonian symbols.