I haven't used ChatGPT myself, so it's hard for me to deduce from the article by itself, but what is the advantage supposed to be here? At first sight it doesn'

I haven't used ChatGPT myself, so it's hard for me to deduce from the article by itself, but what is the advantage supposed to be here? At first sight it doesn't appear to be faster or require less knowledge than writing it yourself does - is that wrong, or is there another advantage that I'm missing?