I get it, but to clarify, and maybe it's to do with the work I do, I have no problem with current shells, I think they are great. As I learn more about them and use different features I like them more. This is my experience.
Maybe you're just not very imaginative. I can see my workflow improve considerably by using a structured-io shell, and I'm already quite proficient in bash. So, I'm very happy some people are trying to make it happen.
Also, I'm not sure what your argument is, except "I don't get it"? It's fine, lots of people don't get stuff. Just move on, and maybe in a few years when it's mature, you'll see it again and go "Ah!"
