The zip contains many zip files containing core files for the SDK, but no executables. There is a .megazarf file, titled NintendoSDK_16.7.megazarf (that after reading up on, I found out that nintendo created), extracting it created a whole slew of .zarf files. Sure enough, all of the zarf files were titled the missing executable folders. And inside of each one were... FILES! Basically, the .megazarf file and .zarf files are just renamed zip files. Extract them using 7-Zip, and you're good to go.