before deciding to post this thread

It's not irrelevant, particularly given almost everything that happens after the Cataclysm and Deathwing's demise is centered around the discovery of this new continent. These forgotten lands, as well as the way the Horde and Alliance go about exploring them, are central World of Warcraft Gold to the overall story line (much like Illidan and the Burning Legion were to The Burning Crusade, the Lich King and his Scourge were to Wrath of the Lich King, and Deathwing's destructive return to Azeroth was in Cataclysm).

I'm not sure I understand your argument. It feels like you're claiming we're naming the expansion after a new race's starting zone (not true) and arguing that's "jumping the shark." If you're only taking issue with the title, I don't think that qualifies for such a label at all. More importantly though, I get the sense you learned only two bulleted details about the expansion (new race and new land to explore) before deciding to post this thread.