Well, you have to understand that Injustice is the new big game at the moment. You just can't leave it out with all the positive feedback it's getting. Don't think that the 8th game donation drive was in vain either. Having the option to donate for the game you wanted really did mean something. Skullgirls might not be one of the 9 games, but it will be having a huge side tournament. And ST will always be at EVO. Apparently, the melee people really wanted their game and they got it. Who knows, melee might be the hypest game at EVO. Just think of it as adding the 8th game really late and the 9th one was for the donation drive.
Besides, it's all about da beech anyways.