Its almost impressive how SL managed to either be disappointing or straight up insulting in almost literally everything it did. Be it the fckn Janitor, be it the story of Sylvanas, be it the treatment of fan favourite legacy characters (Arthas, Ner'zhul, Kel'thuzad, Garrosh) - or be it the handling of expectations.
I remember being quite excited about the idea of an ancient troll-themed shapeshifting death entity being the big villain - instead we got a Sargeras/Lich King rip-off with grey nipples, while Mueh'zala turned out to be completely irrelevant.