So long as the gameplay is works and is fun then I really wouldnt care.
They are selling a game about city management and war with the rome era as a background and within that they can add whatever they wish to promote the game.
They are not selling a Historical documentary that you can interact with.
Like I said before, so long as the gameplay is solid and fun then I hope they can cater to what you wish. If they cant and gameplay must suffer then I hope they do not.