[systoll]

Not that I disagree with your overall point, but there are multiple products in that space. It's clearly not a deal-breaker for most; but if anyone's lamenting the lack of a GoogleDocsFS, they can get one:

https://mountainduck.io

https://cloudmounter.net

https://www.expandrive.com/desktop/

https://github.com/pranavmk98/gDocsFS