Unless something has changed, in the Home edition you are indeed no longer officially able to finish the OS installation process without an internet connection

Unless something has changed, in the Home edition you are indeed no longer officially able to finish the OS installation process without an internet connection and signing into a MS account. There are however ways you can still do that (Shift+F10 and killing oobenetworkconnectionflow.exe). I expect the Pro version to behave the same.