I have tried many things including the steps you have provided, the problem is until you use the wolf link amiibo on the wii u, there is no re-writable section. The wii u initializes this section. When you are restoring the game save that you have to the amiibo, it is only writing to the re-writable section. If you look at your original amiibo UID and the game save UID you will see that the amiibo UID does not change to the game save UID because that section is locked and not writable.
Without initializing the re-writable area with a wii u, I cannot write to it, the game just thinks it's corrupted and wipes it. I do not have a wii u to initialize the amiibo.
It seems that for you, by using the amiibo on the wii u at least once you have initialized the re-writable section, something I cannot do. That is what allowed you to restore to it.