I am not playing a competitive game, civ is not an e-sport. I am playing a game about civilizations, empires and leaders. I want the leaders to have personality and act as close to that personality as possible.
I want Isabel to love me if I adopt her religion or hate me if I don't.
I want Ghandi to not declare war, or only declare war to warmongers.
I want Montezuma to act crazy and attack without even having the upper hand.
I want shaka to attack a lot too, but beeing more powerful, not like crazy montezuma.
And so on.
The AI doesn't behave like a human right now. It's what they tried, but in a game as complex as civ, its normal that it doesn't work.
I understand what you are saying, it makes the game more fair. But in the end, it makes it fair by mostly taking away the diplomacy aspect of civilization. I prefer it beeing less fair and more a game about empires and civilizations. I don't mind fairnes in PvE games.