5.4 was so long I have a tendency to think of Mists as 5.0-5.2 and seperate 5.3 and 5.4 as "Dusts of Orgrimmar." Never really sympathized with people remembering Mists as "lol pandas" when the majority of the expansion's time involved them about as much as cataclysm was about the Tolvir, Dwarves and Therazane.