I did find it childish, but I didn't find it patronizing. I was tested at a Regional Center, which, I later found out, serves only people who are strongly impaired, so I figured they wouldn't be interested in diagnosing someone at my functioning level, and therefore the assessment doesn't apply to people like me (people who, e.g., can live alone, make it through college, etc.)
On second thought, the psychologist seemed rather inept, so maybe choosing the ADOS as a diagnostic tool was a manifestation of his incompetence. Or maybe it was a manifestation of poor communication between the psychologist and Regional Center staff member who did my intake. The psychologist did a half-assed IQ test, only to make sure I wasn't intellectually disabled, it seemed, so clearly the intake person didn't communicate much about me before the assessment.
It was stupid and a waste of time. Anyone who displays more than two facial expressions and can follow directions and string a few sentences together would pass as non-autistic. Of course I was above cutoff.