one could argue that the storyteller is just a different facet of the difficulty scaling system.

different narrators are more difficult than others.

As far as the whole 'intelligent AI' thing. Eh, not really. It's a (small) set of conditions that determines the timing of the next event, the difficulty/magnitude of the event, and whether or not the event will be positive/negative/neutral; plenty of games have had such systems without marketing them as 'intelligent AI storytellers'.

The game is great though. I've sunk way too many hours into it.