I can also see a piece of visual art, have an emotional response, understand what the author intended, and not be a particular fan. That doesn't make me color blind. You are too sure of a lot of things.

I don't have emotional responses to music. Which is what the article is talking about. It's not about being a fan or not being a fan.

Color blindness is an excellent way of putting it. A color blind person can certainly see and appreciate art, but lacks the ability to see certain colors within the art that other people can see. This would alter his experience and make him either like or dislike certain pieces and his opinions would be different than others because of it. He might like a piece because of the way it's organized, and other people could only see the strong contrast in colors that turn them away, which the colorblind person would never see. Alternatively, the color-seeing person could like the color use in a painting and like it for that reason, while a colorblind person might realize it's there (or might not) but can't and doesn't take it into consideration when they critique the piece.