But its the psyche suffering most while dealing with an ED.
Exactly - that's why I have a problem with her characterizing the whole industry as a bunch of agents that force the models to develop eating disorders and that all the models have eating disorders. Just because someone restricts or aspires to be as thin or thinner than she was doesn't mean that they have an eating disorder.
Some are fine with <16, while others get health problems with a higher BMI. But its the psyche suffering most while dealing with an ED.