Since the patch the NPC AI is mentally challenged in a number of areas;
It can’t cross through doorways and gets stuck at the door which makes for great farming once again since you can stand at a door and slaughter them.
Our own thralls have become hippies and they seem to want to just hang out and chat rather than fight.
The AI cannot patch properly and gets stuck on objects so much its not even funny.
When attacking NPC thralls all they seem to know how to do mostly is back up which is pretty lame.
they also seem to be tethered to a spot and will go back to it rather than chase you down. Which allows you to exploit the tether distance nicely. Not sure why NPCs were tethered and animals were not. -but hey easy mode there you go for leveling.
This smart NPC AI that was implemented is brain dead now.