I understand the sentiment behind Ted Grant's poetry and its reference to portrait photography. B&W does free the viewer from being "bedazzled" by color and allows more focus on expression. By the late 1960's B&W was almost dead as an everyday film for "snapshooters" and color dominated the market. Some even thought B&W would completely die away...
But color captures the world around us, and allows us to share a special portion of our witnessing of the world with others. This Starfish is a perfect example: I have never seen such a beautiful starfish in its natural setting and probably never will. But I have seen it through your camera, and it is beautiful. In B&W, it would have lost something in the translation.