What benefit does a separate category give if not more resources? What is it that you would want? Recognition? Services?
DD1 gets a lot of services because she needs them. If/when she is more stable, those services will step back a bit. If she then destabilises, they'll step back in.
The LD service that deals with her is the same one that deals with profound autism, as you like to call it. Same system.
It is people like Jonty Bravery who are our warning against the demarcation of diagnoses based on exacting criteria. If people had been less afraid of using the 'conduct disorder' label, they would have realised that he was at risk of personality disorder.
The tighter the diagnostic criteria get (the more specific) the less sensitive they get (they miss more people who qualify in terms of severity but are excluded on a technicality). Those people will have unmet needs. They are the ones who are most at risk and the most risky, because nobody is watching, nobody is monitoring.
DD1 fell through the LD gap in COVID. My concerns about eating disorder were ignored because CAMHS phoned on the same day that paeds saw her. They were both relieved that the other was involved and therefore both discharged to each other's care. It took me 6 further months to get anyone to listen, by which time her weight for height was 69% and her BMI was 13.5. She required hospital admission and has been under psychiatry ever since.
She fell through the gap again last autumn. She didn't want home visits, then the LD service moved but the premises were unsuitable for patients. So a gap in appointments for 3 months. The psychologist saw her again in November and realised that the reason I had been telling her DD1 was really hard work is that she was psychotic. It's taken 4 months to get her out of the state she was in and at one point they thought that sectioning might be necessary.
@Nmss I can hear that you feel that the impact of your DC's needs is being minimised by people getting an ASD dx who have skills, abilities and futures that you could only dream of for your child. I feel the pain for my DD1, despite the fact that she is verbal. I don't think a new label will help.