I do agree for general users, but the post seems targeted at a more technical audience. I don't expect HR or finance to care about file types and storage beyond being something they know how to work with. I do expect developers to care though, and developers also (generally) prefer "self-managed" solutions like git over CRDT for editing files.

I really disagree with this idea in software design that even when you are making a tool for technical people it must be implemented in a way that non-technical people expect. Like how postman is trying to be a google docs for http requests. Programming languages are our favourite technical tools and we don't expect features that are nice for non-techies, we expect features that confuse non-techies but make our lives easier!