This is great; I'm a big fan of Crawford (mainly The World Beyond Your Head) and you've re-piqued my interest in these slightly earlier authors.
It's also worth noting that all of this musing on art isn't surprising in a way; the ancient world all the up to medieval times didn't really such much distinction between the craftsman and the artist, a sharp distinction between "functional" and "aesthetic" is quite a modern sensibility. Everything old is new again!
Christopher Alexander, as mention elsewhere on this page, is also a great reference here. I'm working through his Nature of Order books at the moment, and although he can be long-winded and vague at times, I'm absolutely loving them.
Your comment made me think of a quote from the first book: "The view of order which I describe in this book is very different. It is even-handed with regard to ornament and function. Order is profoundly functional and profoundly ornamental."
It's also worth noting that all of this musing on art isn't surprising in a way; the ancient world all the up to medieval times didn't really such much distinction between the craftsman and the artist, a sharp distinction between "functional" and "aesthetic" is quite a modern sensibility. Everything old is new again!