Archive.org is the last bastion for these updates. Without "patched" collections, future generations would be forced to play unplayable, buggy version 1.0 discs. So while the legality is murky, the preservation importance is clear.
Instead of downloading a pre-hacked game file, you can: archiveorg wii u games patched
When searching for archiveorg wii u games patched , look for these specific keywords in the upload titles to ensure you’re getting the best quality: Archive