I don't think anyone was arguing that pica is real or not (at least I wasn't) but its one thing to crave nonfoods, and another thing altogether to actually eat something that isn't food. Baby powder isn't the same as ice. Plus, she admited to knowing about pica and seeing a nutritionalist. And she still thought it was a good idea.
(But I am totally side eying this chick because she got all super judgy and high-horsey about people who choose to have an occassional beer or glass of wine with dr approval because 'why would they be so selfish...risk their baby's health...etc. so I'm not big on her anyway.)