Actually, this isn't a step forward. The idea of giving NPCs goals and means to achieve them isn't exactly new or exciting. It's a very simple form of AI, and apparently a very broken one at that. The fact that Gothic got much better results with Scripted AI shows what they did wrong. Also, the line between a scripted AI and Radiant AI is nearly invisible. The only thing that's different between the two is the means of coding the script.