See above. 98% of the owners of the game don't play at Deity. This forum is not at all representative of the people that buy the game and pay the bills for Firaxis.I would rather competitive AI rather than another expansion TBH, i've never once saw the AI win a Culture victory in all my games at Immortal and Deity.
Someone posted the Steam achievement stats before. I'm not making it up: Something like 2% have the "Win at Deity" achievement. And of that 2%, how many of them (like me, for example) used the "1 turn score victory as Rome on Deity" to cheese that cheevo.