Well not everyone can run Linux. I've worked in many companies where people only know how to use Outlook, Word, and Excel and that was enough to do their job.
I'm just surprised that Google's tool has no GUI. I know things are changing in the Windows world with PowerShell, but stereotypically Windows was always the "there's a GUI for that" OS.
It's rare that I meet a Windows sysadmin who prefers command line to clicking buttons.