(I'm not the guy you're replying)

The tones in JJK get too serious for what it's actually trying to be, which is a high-budget action-comedy shonen. It's one thing to have a story filled with death, tragedy and dark tones, and it's another to have one with goofy characters kicking ass in a lighthearted environment. JJK falls flat with its implementation of mixing them, unlike so many others that do it better (e.g. FMA, Re:Zero, One Piece etc).