I find it remarkable that it turned out to be the other way around. Turns out machines can do amazing art very easily. They are still nowhere near being able to replicate human intelligence though.
I guess it is because art and vision occur at such a deep level we aren't aware of it, so we used to not really understand how it worked. It's quite hard to build a machine that does something when you don't understand what it is. We built them anyway because apparently even though we didn't understand it, it wasn't very complicated compared to other tasks that we perform.