When I first started working with Ross Floate, he told me he sees the definition of design being the solving of problems. You find a problem and you design something that solves that problem. By extension, if you're not solving a problem, you are doing something other than designing.
One of the things I've always appreciated about Dyson products is their focus on solving problems and this is a great example.
Thanks to Lyndal for bringing this to my attention.