Martha Stewart is extremely talented. Her designs are picture perfect. Our philosophy is life is messy, and rather than being afraid of those messes we design products that work the way we live.
Also note that invariably when we design something that can be used by those with disabilities, we often make it better for everyone.
Clearly, programming courses should teach methods of design and construction, and the selected examples should be such that a gradual development can be nicely demonstrated.
Obviously, I come from one background, and the people that design fitness equipment have been doing it for years and years, and they know what works and doesn’t work.