I thought on this a bit as to when and where this would be an issue in real world applications and I was reminded of my graphic art classes on color design where a furniture designer for an interior designer decided not to use a neutral gray pinstripe trim with a baby blue covered sofa where the gray may appear orange instead of true gray and instead went with a greenish gray.
Now I don't know if visually that kind of color trick on the eyes would really happen because that was a hypothetical, but it's the only situation where this would be an issue.
This is a good example of the instructor understanding how color appearance shifts in context. Designers that combine colors in fabrics experiment to determine what looks best. Trying to make things like pinstripes look neutral when surrounded by saturated, similarly hued colors, is where the art of the designer comes in.
Another analogy might be comparing photography and printing with pottery and firing in a kiln. A kiln is a tool, subject to precise engineering, but the potter's creations are art. Getting the expected result from a kiln has improved over the ages as temp measurement has become much more precise but the primary art is the potter's. She does benefit from being able to get reproducible results from a kiln or a new one when goes somewhere else. And, like paper varies, firing in a kiln where different things are volatilized into it's atmosphere at different stages can enhance the art, and that process can be made reproducible by precision techniques.
This is a printer subforum. Most, but not all, of the art is in the photograph and paper.
