But the screenshots in the article look near-identical to the N64 original - it's clearly not just a reimplementation of the mechanics and maps, it "looks" just like OoT.
Is it really the case that if you just redraw something, IP law doesn't apply? Or does this project dodge IP law by requiring people to bring their own OoT assets through a ROM or cartridge, or something similar? It seems baffling to me that this would pass muster and I'd love to know more about why!
If it's anything like the Mario 64 decompilation, the repo contains none of those assets and building an executable will require that you to provide a dump of the N64 cart for them to extract those assets from.