In the 1990’s a child was transferred from a special school to my class. She came with daily support by trained staff to enable her to be part of the class. The support gradually dwindled, though the child’s needs did not.
2 years on, other children arrived with 1 week of induction support then an afternoon visit once a month, but no other support and I didn’t even have a TA in those days.
Training for recognising and dealing with different problems is essential, but funding for trained support for these children is essential too.
There are more and more problems identified now. Along with the usual curve of ability, my current class has 5 children with specific special needs, 3 of whom are on the spectrum and all with different needs.
There are 2 support assistants for the most difficult of these children, both without expertise, but both are doing training for working with ASD, and one TA.
It’s my job to ensure that the low, middle and high ability children make progress, whether or not they have a special need, also to provide planning and support for the 3 extra adults -the TA and the support staff in relation to the needs of their children.
Add to that the parenting and social worker aspect of the job which has always been there. but is increasingly complex and it’s obvious why I agree with the OP.