I don't think this article is a very good argument why non-coders don't use it. They don't care about the internals. Git's CLI, well, that's a good reason why they don't. (but you can get quite a lot of the benefits with a few basic commands via a GUI tool, and you totally can explain that to many non-coding users)

Non-coders do use version control. e.g. MS Word documents have some version control features, as does Atlassian Confluence. Some even use Git!