Your argument is like... "once you learn C++ you have your whole processor at your disposal, you don't need to wait for any software because you can write it yourself."
That just highlights some confusion about Emacs. It’s more akinto Unix and the shell as a whole. That’s why I said VM. If you know perl and have a whole host of utils from a unix box, you can script the workflow you want quite easily, especially if you have access to the cpan libraries.
The same thing can happen with emacs. There’s a lot of low level interfaces (network, process,…) and some high level ones regarding the UI. Then there’s a lot of utils andd whole software built with those. All modifiable quite easily. As another commenter had put it, you don’t even need to save a file. You just write some code, eval it, and you have your new feature. If you’re happy with it, you add it to your config or create a new module (very simple). So elisp covers the whole range from simple configuration to whole software.
The same thing can happen with emacs. There’s a lot of low level interfaces (network, process,…) and some high level ones regarding the UI. Then there’s a lot of utils andd whole software built with those. All modifiable quite easily. As another commenter had put it, you don’t even need to save a file. You just write some code, eval it, and you have your new feature. If you’re happy with it, you add it to your config or create a new module (very simple). So elisp covers the whole range from simple configuration to whole software.