Haha yeah thats why i say for better or worse. For better in that fact that he was new blood that offered some new elements and approaches, but for worse because as you say he has become somewhat of a trendsetter that too many tried to imitate. It’s hard to find an equivalent songwriter, producer or composer from the last 10-15 years and thats a dry spell that isn’t good for progress. This even shows itself in how rare it is to get standout anime, games and movies at level of the things out of the 90s and 80s in Japan. Everything has become scaled down and less imaginative. You got a few rare exceptions of course, but overall the world of imagination in Japan has gone smaller rather than bigger.