Can you explain what you mean with that? Surely an upscaled 16px image is more comparable to a crisp 16px image than a crisp 32px image is to a crisp 16px image

Can you explain what you mean with that? Surely an upscaled 16px image is more comparable to a crisp 16px image than a crisp 32px image is to a crisp 16px image, unless you want to argue that the 16px images are hand-crafted for crispness over form.