I think that compared to other styles of Kamado, the KK retains more moisture- which is why many users here don't worry about a water pan when smoking brisket or pork. I guess the main thing is that you cooked one brisket and liked the results, so you will likely do the same next time.
Personally, I've cooked 5-6 briskets now, and done something different each time (low/ slow vs hot/ fast, wood chunks in the basket for smoking vs hot/cold KK smoke attachment, Angus vs Wagyu- and various combinations there of). All of them were great- seems to be a pretty forgiving cut of meat when cooked on the KK...