Page mentions Subversion, anyone still using that vcs these days?
I.e. cases where you typically exchange documents over email/dropbox and use extension-based versioning (e.g. report.v22.final.docx). Subversion keeps all data in one repository nice and tidy. Works well with binary files. Allows easy subtree checkouts. Plus, explicit commits make it easier to track progress without having to dig in your mailbox.
Makes sense, as SVN is basically a centralized versioned file system.
Granted their business was manufacturing electronics for passenger aircraft, so any change in their tooling might trigger an expensive, multi-year recertification across their product line, so maybe they were right...
But hey, at least those workflows are probably ISO 9001 certified! /s