Earlier quoted context omitted.
I wish ancient Greek techne τέχνη hadn't gone through the split that left "art" on one side and "technology" (or work?) on the other. The split of art vs. design you're talking about or one of the many ways to divide the act of creation into a classical/romantic divide or one of the many other ways to describe it should be considered harmful. And I'm not trying to split hairs here but wishing the dichotomy you're tal…
Where is the harm? You can be in both worlds at the same time. If we think of Leonardo da Vinci he created both art that created problems, and inventions that solved problems. But these world where very separate.
If you have an idea that there's a split between "creating beautiful stuff" and "creating useful stuff" then your world turns into one where something is only one or the other where someone creating only does one or the other.
These days it's thought of unique or special if something is both and the fact this isn't standard is influenced by the mental model of them being separate.