Is this very different from people who tune the design of springs in car door handles so they have a nice click when you open them? That's good engineering, but is it what you'd call tech? Or does it need to be done on a web app to be tech?
Absolutely that's tech. Metallurgy, force maps, 3d models, computer controlled machining, etc is in fact HIGH technology. To previous generations that's just plain magic, even if the user doesn't spend more than 1/10th of second thinking about it.