There was a time when the term Asperger's existed to distinguish this particular sort of autistic person from other forms of autism, which as you allude to, can

There was a time when the term Asperger's existed to distinguish this particular sort of autistic person from other forms of autism, which as you allude to, can involve severe mental disability and require a lifetime of care by others. Asperger's was removed from the DSM for somewhat opaque reasons, and then, contemporary Discourse being what it is, some people decided the term was offensive, and we no longer use it. Which is good for the people [citation needed] who are autistic and find the string "Asperger's" offensive, but bad for discourse, since one must either specify "high functioning autism" or "autism as highly-intelligent nerds are likely to encounter it in a professional context", and if you leave it out, someone will be along to point out that this condition shares a name with adults who wear helmets when they leave the house. If it were me, I wouldn't categorize my peers in the same category as adults who wear helmets and diapers. It just doesn't seem like the same thing. But, fortunately, categorizing mental diversity and pathology is not my job.