The Easy AI is exactly that. Easy... Way too easy.
Easy AI doesnt put up much of a fight at all. Pirate raids can take out an Easy AI. Try it on Normal, and Hard AI (cruel and vicious AI is a cheating AI)
The bad thing about the AI's right now are that they like to stall their own economy's. Chances are you will get a titan before the AI does. Even on hard AI. Give it time i believe the AI is still being looked at.