I agree with many of your points, but I have to say that you're forgetting some of the most arguments for the toppling of Blizzard's massive tower. Now, granted, WoW is a much more well-established MMO than any of the other big names to date, but that can also work against it, I think.
The problem has been, thus far, that the companies trying to "out-perform" Blizzard have stumbled over their own feet at every turn (at least that's the way it seems from my end). Warhammer had an opportunity, but in its effort to crank out the title before the holiday rush, the game suffered from bugs galore, and had relatively ineffective game managers at the time (again, from my experience). And by the way, bravo to whatever executive at Mythic that wasn't watching the release date for WotLK. Excellent business move there, rushing a title to completion only to release it alongside the more polished tyrant you're trying to bring down.
My experience with Aion (again, in theory, another contender for the throne at first glance) has proven to me two things. First, that Aion is very pretty. Second, that Aion is very pretty because resources were put into the art department after being pulled from the desk of the person responsible for developing the combat system.
You've already included Champions in your article, and my exposure to it was very limited anyway, so I can't really make a value judgment there.
And what else is there in the market? EVE? The only MMO that actually rewards you for not playing it.
I agree, EA's got to do some major polish if they want TOR to sell well against World of Warcraft, but I also don't think Blizzard is the stalwart titan you paint them to be. Their player base is full of people, like me, who have gotten bored with the same old encounters (giving old abilities and "tricks" from past instances to the new raid bosses). A fair amount may be tired of being "ignored" by the developers when certain imbalances and exploits remain unresolved for months (or worse, you finally see a development message on the subject to the effect of "Yeah, it's broken. But we're just going to design the game around it being broken.").
Or, and I guarantee this comprises the larger group, the people who wouldn't mind starting fresh somewhere else if it meant we wouldn't have to play the style of MMO to which we've grown accustomed in that damnable fantasy setting anymore. I mean really, from 1999 (launch of EQ) to now (with WoW's utter dominance), in order to play a halfway-decent MMO, you're forced to play with ELVES!!!
I cannot emphasize this enough. I would pay twice what it will cost to join TOR if it means no more elves.