This is pathetic. Either don't hire women to be there or just hire a bunch of strippers. I say this as someone who is irritated by both sexism and political correctness run amok.
Their job isn't just to be attractive. Their job is to help schmooze people who don't seem to be having fun. There are social skills involved, whether or not you value or believe in them.
This is honestly the most valuable comment on this page, and ironically it's the very last one that I see.
The models in this case really are performing a valuable job.
Perhaps that's worth doing, no one wants to feel left out at a party. But then why do they need to be models, or focus on talking to the opposite gender?