Look, I think the overall point is true - D2 is really a kind of Zelda and exactly as mature as the fanbois screeching for a "hardcore Zelda" want. But it's not Zelda.
See, the fanbois like Zelda. But...it looks so colorful, so kiddy, so...so...so not MANRY. So obviously the solution isn't getting a game that is exactly what they want, no, it's demanding Zelda to change.
Playing D2 wouldn't let them pretend that Zelda is SO MATURE NOW!!11one. It's about ego, not the actual game.