like I told just above, no it's not needed at all.
The "fix" is just the latest version of the cIOS, in a pack of "5 wad files" which will install 5 different revisions of d2x v7 alpha5 (for developers only). You will have a cIOS installed in slot 247/248/249/250/251 ! You really don't need that!
You have two scenarios to play the game :
- You already watched the Wii motion+ video:
You don't need the "fix" pack at all. just play Zelda like any other games.
- You never watched the Wii Motion+ video:
- solution 1 (dirty, but quick): Go to your loader setting, select Alternative dol method, and pick the "player.dol". Launch the game, it will show you the Wii motion+ video and reboot the system. Go back to your game setting in the loader, and disable alternative dol. Launch the game and Enjoy

- Solution 2 (clean): Install D2x v6 if you don't have it yet. install in slot 249 the base 56. Go to your USBloader setting (or game setting) and enable the option "Block IOS reload". Launch the game, it will show you the video only the first time you launch it. and instead of rebooting the system it will launch the game. Enjoy

(PS: you can disable "block IOS reload" once you watched the video M+, it won't try to load it again ever)
The "fix" is only provided so the users install the latest D2x in order to enable "block IOS reload" option.
But it's not required at all, you can play the game without this option, you ONLY NEED to watch the video Motion+ once (maybe you already did with Wii Sport Resort? then it's fine, you won't ever have to watch it again).
Zelda has no protection at all, it's just a "common" Wii motion+ game : you need to watch the video.
The "tutorial" in the first post of this topic is wrong.
It told the user to do unnecessary steps (without checking their current config first), and says that USBloaderGX is only available as WAD file so he can't give it (which is wrong, a dol exists, and the wad is legal).
The tutorial rely on pirated content that the user has to find, instead of providing legal installers. It's not very helpful for a tutorial if it cover only 1 released torrent file which included the said "fixed wad" and not being a global tutorial (for example for people buying the original but not wanting to update their wii and play only on USB loaders).
Elza, If you can, please update the tutorial to be legal and cover all possible user's situation.