I've read the preview. I can understand the dude's enthusiasm, but I'm not impressed.
Of particular note is "In one Dark Brotherhood quest, for example, I infiltrated a dinner party and used various means to isolate and eliminate guests one at a time. The remaining guests dynamically reacted to the assassinations - accusing each other or equipping themselves for battle."
"I found the populace gathered at their local church. Angered by the frosty reception, I tossed their holy book aside and gave the priest a knuckle sandwich. As expected, most of the citizens rallied to defend their preacher, but I was surprised to see one unarmed citizen bolt out the door. Once I had worn out my welcome, I casually left the church (...). The cultists didn't abandon the chase, and more amazingly, the "coward" who fled the church returned brandishing a sword retrieved from his house."
Strictly speaking in terms of AI, that does sound neat, but AI is not a substitute for actual writing. I can imagine how fans of Morrowind would be enthusiastic, though.