Sad, to be sure, but there's no kind of critical document storage that doesn't need a backup.
What exactly was the "responsible" backup policy supposed to have been?
All of my .gdoc and .gsheet files were 4 KB when I last used the Google Drive desktop client. How is it reasonable to conclude that all of one's Google Docs and Google Spreadsheets are 4 KB each? I could definitely understand how my mom might arrive at this conclusion, but this guy identifies as a "web designer and developer".