Originally Posted by
Carapace
damage increase is working correctly, and the right amount. Tapping is actually unecessary as windmill on its own ticks damage once cast so spare your fingers the bleeding! The outlier here seems to be the sword proc combined with everything else, which was nerfed a bit to compensate recently. Note that since windmill ticks off like 4 or 5 attacks per cast, each of those ticks has a chance to proc the sword, hence the overload of damage.
Is it working as designed? technically yes, but it's outside of a combination we anticipated. We will keep an eye on it, and if we feel it is out of control we can bring the damage down a bit to level it out. Not just yet though.