And maybe a different way of saying the same thing, it's easier to kick down a sand castle than to build one. Which I suppose is a way of saying there are a lot of correct ways to create "destroyed sandcastle" and relatively fewer ways to create "intact sandcastle".
I get both your and the GP's points. Still, kicking down a sandcastle or building a sandcastle one grain at a time do not differ in kind. Certainly the ease and energy involved differ. But it's the same fundamental manipulation in both activities.