It would be amazing to see the Gameboy/N64 emulator hacker community expand, and NEW games begin to be developed based on these docs. Maybe Nintendo could double-down on this and turn it into good publicity
The article mentions that this would be unwise due to these documents being released illegally. Reverse engineering some existing system for the purpose of interoperability (as is common among homebrew enthusiasts) is legal; hacking into a Nintendo subcontractor's IT and leaking internal documentation obviously isn't.