You obviously haven't run the Illithid quests. They're a hell of a challenge for the majority of players at level 32.
Unpopular opinion: Nerfs are necessary for balance. As a player, you can't control the nerfs. You can only control your response to them. If you think nerfs are overreaching, then vote with your wallet and attention. Those are the only two things that companies understand. Diablo 4 is a great example of that. Complaining about nerfs yet continuing to play the game tells a dev studio everything is fine.
Yes, those quests are challenging.
And I liked most of them.
But that also shows they don't need nerfs.
And the fun I had, was being able to use my existing powers to overcome those quests.
My first life CC worked as appropriately for example.
My defenses mattered.
Still tons of deaths the first time, but it was fun. Mostly because my character still performed as he (she actually) always had.
My saves, DCs, DPS, and HEALING!!!!!!!! were all the same.
Only the quest had changed.
That was challenging and fun.