Nah the biggest FU was how they handled Arthas.I think those 'discussions' turned into a negative feedback loop between communities & influencers; extreme views were reinforced and all nuance got lost. If I am to speculate I would say that did more harm than the actual design in some cases. Conduit energy might've been a somewhat annoying system but the negativity about it was insane (so insane blizzard pulled the emergency break). It also became apparent that no matter how the story of Sylvanas played out, people were determined to hate it. There's even a conspiracy theory about that story - that should be a serious indication how extreme these views were.