Protective Custody for Morbidly Obese Children?

In a JAMA commentary on life-threatening childhood obesity,¹ the authors suggest the "involvement of state protective services . . . including placement into foster care in carefully selected situations" as an alternative to treatment at newly established pediatric surgical weight loss programs. Do you agree? 

Reference
1. Murtagh L, Lugwig DS. State intervention in life-threatening childhood obesity. JAMA. 2011;306:206-207. Full text (requires subscription)