Autism has comorbidities like digestive problems, sleep problems, seizures, sensory issues, and weight control. One sees mental health issues like anxiety, depression, and increased rates of burnout which do not seem to be merely environmentally caused. You might be able to spin something like anxiety as a sometimes benefit, but it's hard to spin regular digestive issues as being some kind of useful variation.
The author gets it right that how autistic people work mentally isn't so much inferior as it is unpopular. You can go to a psychologist talking about how difficult digestive pain and sleeplessness are for you and they will mull about how awful it must be to be so socially awful since everybody must dislike me.
People are absolutely obsessed with the idea of the social inferiority of autistics, despite evidence that they're superior at social tasks like empathizing with other autistic people [1]. Autistics can regularly show bizarrely strong "social skills" like having an immense vocabulary, overall high verbal intelligence, or perhaps a steeltrap memory for personal facts about others. People give no value to these things arbitrarily. Nowadays I can go to a hirevue interview and be algorithmically denied a job because my eye contact is poor and my large vocabulary is actually a negative because it's unusual and thus not similar to the vocab of a companies "best hires". Rather than people going "what the fuck do we actually have legal minority filtering software being used by nominally reputable companies like major banks" people are more concerned that autistics are acting too different and should be more normal.
Yet the comorbidities which impact health makes me suspect that the disorder label is still useful especially because it can lead to accommodations regarding scheduling, workplace conditions, diet, and such. We don't have a conceptual alternative to disorder/disability that allows for the accommodations needed to help people succeed. I haven't even touched on the people who have severe issues and can't live independently or provide for themselves.
[1] https://www.autism.org.uk/advice-and-guidance/professional-p...