There are two guiding principals for special education: a free public education and an IEP tailored individually.
However one must step back and look at public education and it’s principal mission. For the most part it strives to prepare children to read and write; perform skills to enter the workforce while introducing principles and practices of civil society. As you might imagine the vast majority of children will be suitable for such broad goal.
Now faced with the task of educating and providing therapeutic services to children who may always be dependent it should be no surprise that the educational system should reject the medical model for which they see themselves as wholly unsuited. Nor should it be a surprise there is resistance to it.
Simply put, 99% of medical professionals would be unsuited to provide care for complex children.
We are naive to believe competency exists in either our educational or medical models where knowledge of 24/7 maintenance of complex individuals is required. But we are not naive to believe we can bring competency to these models.