What--other than animations you consider sub-standard--didn't you like about the trailer? I suppose folks could disagree whether the trailer accompanying a release date announcement should be broader in focus, rather than have it highlight a specific aspect of gameplay, but it's not as though this is the first trailer for the game.
I'd recommend that anyone unsure whether it's a game they want to play wait for open beta and test drive it. If, after that, you decide to buy a box, you can play for a month and then consider whether you enjoyed it enough to want to subscribe. Either way, there's no need to get worked up over impressions based on partial information. What will count is whether the folks who play it at release have fun. If they do, folks will hear about it. If they don't, they'll hear that, too. What folks have heard--or even think they've experienced--to date won't amount to a hill of beans if folks they know start talking about how much fun they had taking that keep or exploring that island the night before. Indeed, it was folks talking about WoW in Morrowind General that got me first to try an MMO, something I'd never imagined I'd do.