The cases I know of are not quite what OP is describing. Admittedly. Not family court. Not final removal.
I personally know of 5 cases of children being removed temporarily. A concern or risk. Understandable and no complaint about why SS had to legitimately investigate. But it was 'how' the case was handled!
Each time 2 or 3 children were temporarily placed with family, friends, or close, or someone else, whilst investigating.
But each time it was disastrous. One time one girl made a comment at nursery that turned out to be just not true. But the case just dragged on unnecessarily, because of SS failings.
, Other times, at least in 2 cases, there were such short staffing and a lack of skilled staff to interview that it was over a month before the very young children were even interviewed.
Other times there was just presumption, assumptions, lieing, deliberately not including GP's/consultants/ school reports, because it contradicted SS's aim of implying poor parenting/neglect.
I've seen it, the documents and evidence, because I was asked it support other families, after my experience.
This meant that I'm all 5 cases, the children were delayed from returning home, for weeks longer than was necessary, some times for months. The worst one I saw was over 6 months! sometimes having not been allowed to see their parents at all, or only partly, or not for a long time, due to other mistakes and errors.
and overall the cases were disgraceful. Bad errors made.
Damage was done to the children. And the family. Unnecessarily so. And the children are left anxious with seperation anxiety.
So. SS mistakes, misconduct, un-professionalism does occur. Rare. Compared to how many cases they do deal with. But it does happen.
I'm sure most of you can believe this.