The bad news about The Legend of Zelda: Skyward Sword's  progress lock-out bug just doesn't seem to go away. Even though the Zelda Save Data Update Channel fixes the problem, all that progress is for naught if you delete your Wii Shop Channel account. Doing so will negate any effect the update had. So if you find a copy of Skyward Sword under the tree Sunday, make sure you A) avoid Lanayru as your first destination during the Song of the Hero quest or B) never, ever delete your Wii Shop Channel account.