I don't understand the purpose behind that quest/battle video. All it showed was stuff we're used to from old-school WoW-type MMO's. Generic kill/fetch quests with brainless combat. This doesn't mean all quests will be like that. Or that combat won't be intricate. But this is what they decided to show, and I don't blame people's reactions.

That said, I'm sure people will forget about these alpha videos once we get closer to release and they pull out the big guns when they start marketing the game properly.