I see three possibilities:
1) It was said in jest, or frustration, or exhaustion, and does not actually reflect the viewpoint of a thinking human being.
2) She stone-cold made it up. The whole article has a Jayson Blair/Janet Cooke kinda vibe.
3) There really are people that self-absorbed, and they're the ones most likely to go to an image-centric starfuckerfest promoted largely by instagram personas.