As for the Brohm picture being 'irrelevant', well, clearly many galleries and publishers disagree.
With some intellectually driven colour photography, subject matter is understood as a mere necessity, a burden even, and used simply as an anchor around which to explore the medium. Which is exactly what Eggleston did, then Shore and Brohm. Steve McCurry on the other hand is a classical humanitarian photographer and so his methodology is about 'embracing' the subject. And definitely, I love the word 'spice' to describe the aesthetics of his pictures, considering the exotic places he makes them. But it doesn't ring as true with Brohm in my mind.