Today I've went to Mount Hyjal raid, in the Caverns of Time. I've been there only once, so I've kind of explored the whole zone and checked every detail to see how good and close it was to the scenario in the Warcraft 3 final mission.
I went and checked if there was an undead base right on the doorstep of the Human base, and there was, indeed one. However, for my surprise, 2 big SCOURGE flags were planted right at the entrance. And then inside you can see a bunch of mindless ghouls, abominations, and human necromancers, similar to the Cult of the Damned.
My question is, since the invasion of Mount Hyjal was supposed to have been made by the Burning Legion, commanded by Archimonde, why the exact f4ck did they stabilish a SCOURGE base camp in the raid of World of Warcraft? Is this not a BIG flaw in lore? It was not the scourge invading mount hyjal, but the Burning Legion. They are very disctinct from one another.