Basically, chaos means that there arent many "bugs". Its meant to be an exploration of violating every standard expectation in a totally random manner. Created by a burnout for other burnouts.
Its also great publicity for the use of the SemiRandom program by Ballbarian. Almost every complaint about the chaos games is fixed in SemiRand. The units are more logically assigned and the AIs have smarter god choices. Also the provinces are themed (lycanthrope village, forest of fowls, dragons dessert) use of reasonable naming, guard units, and what you can recruit based on what was guarding the province. You can even design and add your own special provinces (in fact, please do)