I love this comic from the very talented miggy over at WoW Ladies, not only because it's funny, but because she's got a point. Back when the Battle for Mount Hyjal instance in the Caverns of Time appeared in game, we all wondered why we were going there in the first place -- unlike the other CoT instances, there were no dragons to fight or strange factions messing with the continuum. All that could happen in there is that we'd screw everything up and ruin time as we know it (and given all the wipes that went on in there, we probably did). But with the Argent Tournament, Blizzard seems to have gone even further: not only is there no clear reason for us to do it, but we're actually ignoring the threat at hand.
As you know if you've read Sacco's excellent (and completely spoilerrific) guides to the Coliseum raid and the Tournament 5-man, there is a tacked-on reason we're doing all of this stuff, and it's that the Horde and Alliance want to send their strongest people to go after Arthas, and the Tournament is a way of sussing out who's most worthy. But though that makes for some great lore cutscenes, doesn't it still undermine Arthas' strength? How powerful can the guy be if there are so many people lining up to kill him we have to fight over it?
Don't get me wrong, we're definitely looking forward to the Coliseum, and it's definitely brought some interesting things and rewards to the game. Just like CoT, in the light of the lore and the MMO genre at large, it's a great addition. But it is funny that the great Lich King's main tactic seems to be to have us fight it out between ourselves way before we ever bother taking a shot at him.