The answer is another tool that reduces friction to setting up a website. I'm friends with a bunch of bands that don't have websites, but they do have facebook pages! Why? Because they're free and they do what the band needs from a website.
A restaurant doesn't need more than a page with contact info and link to a pdf menu. But even standing that up is a massive hurdle for <people who don't browse HN casually>.
And there are solutions to this. From what I understand (which isn't very much), the SolidWorks (a 3d CAD tool) team has their own version control system, called PDM, which works with the Microsoft office suite.
next is organizations getting over the hurdle of educating people how to use version control.
Also - I think the current generation of office stores everything in XML, which can then be processed through git, svn, etc.