What sets Emacs apart for me is that it, unlike a lot of "unix philosophy" tools, it deliberately takes a sort of systems approach. The often used analogy is that an architect never just designs rooms in isolation, but only changes a room in the context of the house. It's the whole arrangement that matters, not its parts. And you can't infer the performance of the former from the latter.

The minimal approach to have 'one tool do one thing' ignores that all the complexity is in the interactions. People praise magit so much I think because like all other tools for Emacs, it's designed with Emacs and the common interface and language in mind. It's implicit in every extension people build.

When people today struggle how to combine all their dozens of tools from notetaking to developing, to file search to git and struggle to fit it all together I think the strength of learning Emacs comes through. My guess is that this is also one of the reasons for the popularity of VsCode as it takes a similar approach.