This seems fairly straight forward to me and can't understand where the outrage is coming from. My guess is there isn't all that much in reality. This is clearly a decision made in the best interests of the child by loving parents.
It is coming from people who have never cared for an adult with horrific bedsores and yeast infections because their loved ones do not have the strength to turn them or bathe them as often as they should. This child will have a much more comfortable and healthy life at this small size.