Why would anyone have to articulate that? They are programs that allow people to make the pictures they have in their minds into a form that others can now look

Why would anyone have to articulate that? They are programs that allow people to make the pictures they have in their minds into a form that others can now look at. People who otherwise wouldn't be able to make these pictures before (because they were bad at drawing or whatever) now can. That's not "necessary" but then again nothing about art really is. It's just fun.