As an artist, I am personally very interested in how other artists work. What techniques did the old masters work with? How did they compose their pictures or paint light? How was this effect produced? What factors create this mood? Where does this idea come from? And so on.
But does that interest the viewer? The viewer cares just about the artwork, doesn’t he?
For most things we wear, eat or otherwise use, the origin and production is not clear, but we can still enjoy it. I believe that art is not much different. We are glad that the work is there, we can look at it, touch it or hear it. That’s enough. A bit of background knowledge is fine, but not much more.
In a magic trick you do not really want to know how it works, right? (I do).