But they should. People aren't stupid, shells aren't horrifically complicated if you try a bit and once you climb that hurdle you're suddenly a "tech genius".
Also doing something you don't like rarely yields impressive results, no matter the endeavor.
Just like every tool, the terminal has its place. So do GUIs.
Whatever the UNIX shell provides, can be more comfortably over an interactive graphical REPL, which even allows for proper graphical debugging tools when pipelines don't work as they are supposed to be.
Secondly, since UI/UX has always been one of my focus, I have seen too many throw away CLI tools that don't respect the users of the tool, because "hey they are developers as well, they can fix it, deal with its issues".
Using the batch operations example -- if you know shell scripting, you can save yourself time doing things manually -- but you need to have already traded in the time to learn Shell scripting.
GUIs allow you to reduce time spent learning a domain specific skill at the expense of overall efficiency.