I think in the normal version, 1.05 to 1.00, the AI normally forms alliances, like modern day NATO, which make the game harder, especially if you're not in any of them. In the 1.1 version, the advanced AI is smart enough to recognize superpowers before they's fully born, and try to take them out earlier to stabilize their own empire's place in the world, universe whatever. This could lead to the uber-hard AI dying before you can even take a swing at them, or it could lead to less empires in the game at large, which means the painful mop-up stage is averted.
Which is what i think he was trying to say
As for the geography, that could boil down to luck.