I don't believe that's accurate but I'll have to do some research.
However,
there are plenty of people that support Carlbrook. Alternatively, there are families that left the school angry. These parents have the resources, (money and power) to get the place shut down if they had not dotted their "i"s and crossed their "t"s on the TC side. A good 50% of the Carlbrook parent body is comprised of lawyers. When a kid has quit school, and then has a chance to go to class and continue his education, the accreditation of the school's academic program means nothing to those parents. Education is full of bureaucracy. Save the debate for the therapeutics.