Well, I am from Europe but that doesnt mean I want a too Eurocentric game.
And its a simulation. A simulation should allow all civs to compete for world dominance. Otherwise you could just get a message during year 1500 "Europeans have colonized your empire since it was not possible for you to develop gunpowder. Game over!"
You are free to suggest more empires. But they should have something unique in them, not just copies of one another.
Inca empire I could understand. But reality is that outside Europe there are rather few civilizations/empires which have enough material on them to make them viable options for addition.
Making "Middle Eastern Civilization" 1, 2, 3 and 4 is not improvement unless they offer distinctively different gameplay from one another.