Anne V may not be on the level of KK or Coco, but she definitely has a ton of experience that she brings to the table. She's really been an incredibly successful model and has had a great career. Sports Illustrated Swimsuit Issue pretty much every year for about a decade, growing and varied amounts of high fashion work, experience dealing with the press thanks to her relationship to Adam Levine, etc. I think she brings something interesting to the table.
Lydia Hearst, though? That's a bit of a joke, to be honest. Surely, Naomi could have found someone with some more genuine modelling experience.