Radiant AI would be very interesting if the diologue that went with it weren't utter crap.
'Why dont you stay with me?'
'haha, why would I stay in this dump'
'there's no need to be rude'
'haha, only joking'
'why dont you come upstairs with me so you can watch me set my dog on fire'
Also in terms of the AI, this sounds to me like exactly the same thing that happened when Black and White came out 'wow, this creature AI looks really cool, he'll like do things, then I can train him to do things and he will do other things!'. Then the game actually comes out 'wait, why is my creature either ignoring me, sleeping or setting villagers on fire. And why the HELL does he keep eating his own poop?'.