Yeah, I'd have to agree that people canceling their Preorders because of the leak are overreacting a bit, though who am I to decide how others spend their money? Buy the game, don't buy the game, it makes no difference to me in the grand scheme of things.
Anyway, the fact that there's at least a couple of locked characters is nice, as there's still some mystery to the game. I'll admit that while knowing that these characters did indeed make their way into the game is nice, it does kill some of the excitement for me to a certain degree, but I digress, I probably would've spoiled myself anyway when the game launched in Japan regardless. Still, I'm interested to see how what's left turns out.