The "rockstar modeler" phenomenon they're talking about here is amusing and very real, because if you're not into it you might not realize modeling is such a closeted hobby. Almost every modeler I know (all of whom, through the internet), makes every effort to avoid telling anyone about the hobby, and we all do it instinctively. It's funny because it's not like model-makers are some classically oppressed group, but we certainly act like we are. Maybe its childhood trauma lurking deep in our subconscious. Maybe it's just cognitive dissonance between who we really are, and the face we present to the world. I don't know.
But anyway, that's the sort of deeper significance to this article, and why it's so funny (or cool, for some of us) to have rockstars of all people who are into modeling.