They felt, and in many ways feel still abandoned by Blizzard. Diablo 2 Resurrected could begin to rectify the situation. Blizzard is a corporation in the process of transition. It is firmly in the middle of the D2R Items proposed Microsoft merger, Diablo 2 Resurrected could prove to be the last game developed by the "Old Blizzard," and there's a lot on the line to make sure that fans get the game they want, especially since in the time since Diablo 3, other games within the same genre, such as Path of Exile, have challenged Blizzard's looted crown.
There's an essential loop in Diablo that's at the heart of the whole game's success, or disappointing. Are you satisfied to walk into the dungeon, mindlessly hunt down mobs and loot? If so it means that Diablo 2 Resurrected is halfway to being adored by the fans. If the team has once repeatedly messed up the loot system, as it did in the original release of Diablo 3, then we're in trouble.
In the book Blood, Sweat, and Pixels the chapter on the calamity that was Diablo 3's launch tells the way a Blizzard producer played through the game literally hundreds of hours until they found one piece legendary loot. The moment that the orange light emerged from the shadow of an adversary, he tried to grab the item only to find that his character could not even use it. The loot system was so fundamentally flawed that the excitement in grinding away for an hour followed by the relief of having something to take home, was broken.
This was eventually fixed to which you could only find certain tiers of loot that fit your particular class, and the speed at which early-game famous items would be dropped up. Also, even though the legendary items you were getting didn't break the game but you did occasionally get a small hit of dopamine and keep you hooked.
In the event that Diablo 2 Resurrected gets that right and has a similar loot system to that of Loot2.0 and Loot2.0 in Diablo 3, then we're already concerned about how long we'll be able to devote to the game. The Diablo 3 disaster is the best thing that could happen to the franchise on an ongoing basis. When you combine it with it's Immortal controversy, it seems like Blizzard offers a clear roadmap of potholes to avoid should it want to remain within the ranks of Diablo 2 Resurrected Items it's best players.