This is a compelling argument, but it does make the assumption that the experiential system need necessarily wholly contain the experience of the component part

This is a compelling argument, but it does make the assumption that the experiential system need necessarily wholly contain the experience of the component parts, rather than merely overlap with it. Yes, the color-sighted person can experience colors on their own, but their ability to see color is what is part of the experiential system the same way the computer's ability to see color was.