I suspect it was actually the doctors themselves the schools that teach about mental health are not what they uses to be.
Much like the rest of the education system it has degraded significantly in effectiveness as it’s professorship have become more political.
A violent kid who has committed numerous assaults and threatens numerous other people over a period of time. Is not simply an autistic kid.
Autistic people have trouble understanding other people, not basic rule or right and wrong. They are not intrinsically violent, nor are they in any way predisposed to break rules.