I strongly disagree. If we're going to use a TUI, it should embrace what it is. Turning it into a watered down GUI does not work to its strengths nor serve the needs of the users still working with it.
I dunno, Emacs works really well, and I line images and stuff is really nice. A good example of this is that you can have inline rendered LateX in your text buffer. And when you need to edit it, it turns about into texts.
Also inline graphs in org-mode is super nice.