Wow, this guy have no idea what Diablo is about. EVERYTHING up until max level is just bullcrap that you should breeze through asap as the game starts at max level and max torment difficulty, everything before that is just the prologue. If you enjoy the story while leveling, it's a bonus, but Diablo is not about that. It's a game where you (at endgame with max difficulty) start the gear grind to try to push yourself to complete harder and harder rifts/dungeons/whatever.
Bitching about Diablo pre endgame/max torment is like saying; WoW sucked so much in Elwynn Forest that you quit playing it.