I think this is hugely telling from the baiili transcript. Essentially, no one in children's services challenged the mother despite lots of concerns raised from school and other professionals. The "orthodoxy" simply blinded them to any alternative views.
"Transgender equality has received a great deal of attention in recent times. I believe that in this case the profile and sensitivity of the matters raised by the mother blinded a number of professionals from applying their training, skills and, it has to be said, common sense. They failed properly to investigate M's assertions, in part I suspect, because they did not wish to appear to be challenging an emerging orthodoxy in such a high profile issue."