Its not necessarily nostalgia, but like rolling back to a pre-nerffed bosses version of Elden Ring. The old content still existed but it was fundamentally not the same experience and was significantly less challenging with the way the game had changed. I can definitely see the case for it, but I also think stuff like Season of Discovery and Vanilla+ were what people were really after, like with Old School Runescape. Which private servers like Turtle WoW do better, but still. I don’t think its weird except in a bizarre “people hate our changes so much they want to pay us to undo them” way.