Haven I apologise for a harsh choice of words for this woman, but the facts still stand.
Too many parents, of NT children usually, see things they've never encountered and think they can get positioned high on their pedestal and say "I'd never do that" or "that isn't how I do it...it must be abuse" 
My DS has Asperger's but you'd barely tell now unless you spoke to him. It wasn't the same 6 years ago, far from it.
He wouldn't go to the bathroom, had repetitive tics, barely slept, and would only eat 4 foods: chicken, potato, rice and cheese.
Never touching, his sauce went on a separate plate to dip into, not on the food, if it went on his food that was it, ruined.
He became badly constipated, and I was urged that he really needed to eat a wider diet.
If I'd have had a SS visit, because some woman had seen me frustrated, tired, but determinedly trying to get DS to have some carrot and peas, I'd have felt further judged, on top of the self- judgment I felt anyway, for it usually ending in tears and mess that was me
So I feel strongly that unless you can say beyond a shadow of a doubt that something really needs investigation, let parents do what they can.