AutomatedTeller
Frequent poster
Yes, because "you win" or "you lose" random events are comparable to different AI personalities (this assuming that the AI has a personality).
I truly believe there is only one "you lose" random event, which is the vedic aryans, and that's only if it occurs before you get a counter to archers or can build 4 warriors for city defense. Which is quite possible on higher levels, as the AI starts with archery and someone will get polytheism by 3000 BC or so.
That the various barb uprising events are seen as game over is mainly because humans run a heavy farmer's gambit and ignore archery because it's useless and because the AI won't attack you until later in the game.