Its the age-old "new good, old bad!" Thinking of unintelligent people. Theyre unable to realize when something is just good.
Like a non-javascript web page. My friends think I'm on the dark web if I send them something that isnt off of corponet with shiny beveled buttons with shadows and shading.
Not saying the opposite either; guis are fine if theyre well designed and use words instead of meaningless symbols. But a lot of them arent well designed.
Also, for dyslexic people the terminal is a big challenge, near impossible.