I love the command line nature of Linux. It’s waaay easier to automate tasks than with a GUI.
I recently found out I could scan images from the command line. A few minutes of hacking later and I had some scripts that greatly sped up the process of scanning books over using the GUI.
And I can see your point of view, but the thing is that “Linux devs” do this for fun. And writing GUIs isn’t the most fun kind of programming for a lot of people.
If you need it done, you can pay someone to do it, or program it yourself. Otherwise the only other option is to wait upon the kindness of strangers.
As from the beginning, OSS devs will work on whatever they want to. Free work is not market-driven.