Things like Tauren melee reach being bigger, which is something I experienced going away live during Black Temple Illidan progression (at least for that particular encounter), is confusing to players as it's a significant advantage over other races in some instances. No quest tracking is another apparently confusing issue, as many Mankirk's WIfe seekers well know, and there's a whole lot more where that came from:
Thanks for stopping by! I'm Crzypck, officer, Raid Leader, and tank of Mist on Area 52, and the official raid guide writer partnered with Limit, the US#1 and World #2 guild. This is the home page for Limit's Official Battle of Dazar'alor Mythic Raid Guide. Every strategy guide has been thoroughly discussed, reviewed, and approved by officers from Limit.
It was the experience of the game that brought pleasure and joy, and that's what a lot of us want again. Not the numbers. When I play Classic I want to go through the deadmines with people I like and overcome a challenge together and see myself become stronger as a result. I don't want to play Classic so I can say "booyah! That number is exactly the same as it was 13 years ago!"