No, but endgames that have only 1 faction or all major factions have crisis armies is the tomb kings one, waaagh one, the vampire counts one (I think) and thats about it. Disable the grudge one, Its my least favorite as well. Player Bias can also depend on the faction your playing and the difficulty. Anything above hard the AI just kind of sits around and waits for you to discover them then declares war on you. I prefer normal despite the fact I can beat legendary because theres significantly less player bias, and the AI will actually make some large nations of 26 settlements instead of the largest ever nations me seeing in legendary or very hard has always been naggarond with 24 settlements. And Grimgor with 18