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.
Why not amputate her arms and legs? Would that not make her even more mobile than her current dwarfed state?
Might be less stress on her organs to keep her that size. I dunno...