Yeah, though realistically, if rootkit is sophisticated enough which we can’t be sure until we de-compile it and analyze it, it could potentially replace the firmware on the devices and make itself resilient to install wipes. Generally, people shouldn’t be running script off of Github blindly and actually check the code themselves before running it, if they don’t understand something, ask on forums, linux chat or read documentations.
Then it’s on them, they don’t want or can’t use Linux and it’s open source software and that they should keep using Windows. They could just keep Linux in a virtual machine, that’s perfectly valid.