I red it more like the combination of the thinking process before creating something and the craft to create that something. But is just another ‘what design is’ comment :)
“Coding puts you in full control of your designs — there are fewer mistakes, less frustration and pixel-perfect results.”
I can’t agree more to this. Coding (at least understanding it, ‘getting’ it, if not knowing how to write) is fundamental for web design — as is knowing paper qualities and color printing technics for print design.