I got a shadow priest to level 70 and I want to get him the Ny’alotha cloth set. After reading through a few forum posts, I found I basically have to do the expansion again: unlock Nazjatar, the essence system and do the Black Empire campaign. You also need a ,Friendly" standing with several BfA factions.
Now, I don’t feel like going through irrelevant content to get a transmog, and if your character is not a wearer of a specific piece of gear, its appearance doesn’t unlock for your alts and you can’t mail yourself raid gear.
Do I really have to go through BfA again?