This patch buffed Haud treaty/team game play a lot, but most of the changes do not benefit supremacy players: and sometimes they even do the opposite.
Healers of Lakota/Haud used to work only as healers, but they train 2 times faster than Aztec priests. Now it takes even longer time to train a healer than a war priest, to get a dancer with only half efficiency. Of course it is still a big buff to their late game (10 extra vills, 15 with healer circle shipment), BUT WHAT SHOULD I DO IF I JUST WANNA HEAL MY ARMY?