Well, don't stop healing, but stop letting your heal numbers get in the way of clicking crusaders. Trying to re-position crusaders is now very difficult to do whenever there's a healer affecting either crusader being switched, because the game treats the heal numbers like their own target. So I have to click between heal numbers, drag over to the new spot, and set the crusader in the new spot between heal numbers (if the new pot is being targeted by a heal).