Just saying that doesn't make it true through. If they ran the source code through a decompiler and then cleaned up the output, they're not using any leaked con

Just saying that doesn't make it true through. If they ran the source code through a decompiler and then cleaned up the output, they're not using any leaked content but it's still potentially infringing on Nintendo's copyrighted source code. That's why some projects choose to make "clean room implementations".