They did the same thing when philo was removed. They totally nerfed the myth gain and people were spam farming Bray HM for Myth since it was the fastest way to gain. Later on a few patched later they increased the myth gain across the board to the point it was practically raining myth. History is repeating here it seems. These cycles are kinda annoying to be honest. Why not find a nice balance rather than starting off grindy and then going to joke easy?