Diablo IV has had a rocky start to life out in the wild, with every positive seemingly canceled out by criticism from the game's vast and knowledgeable fan base. Many of these problems relate to balancing and class specs, but others are more broad and worrying. Blizzard's launch of seasonal content was their first major attempt at addressing some of the more pressing issues with the game's mechanics and systems.
Source：https://www.cbr.com/gamescom-interview-diablo-developers/
