Would you have guessed that "1/4 to 1/3 of diagnosed autists need ongoing support" off the top of your head?

Probably not. Because self-selection is doing its work. Out of 10 autistic people you know, ~0 are going to be in the "supervised living" category. They exist - you just don't see them.

Not that it's about me but my guess was 20%, 1/5, not far off from 1/4. I know and am close to many autistic people, those with and without high support needs. That estimate is of diagnosed people. Many autistic people are undiagnosed, therefore not in these numbers. There's increasing evidence autism affects all genders equally yet women have been under diagnosed.

Anyway, the core assertion holds. The framing and thinking of autism as a disorder of a brain that developed wrong is out-dated and incorrect. We could also frame the neurotypical brain as wrong for modern society because it evolved to ensure the survival of humans. For example, the typical brain evolved sophisticated fight or flight responses, and efficient pattern matching to quickly respond to physical threats. Both are "wrong" for modern society and civilization because they're rarely necessary for survival and they confound reason and thoughtful analysis.

It's also a fact human intelligence has evolved significantly faster than human physiology. Those people who win the autism lottery, are successful in life, and ultimately have children will contribute to an increase of the proportion of lottery winners in subsequent generations.

Given this new information, better to examine neurological differences rather than focusing on winners and losers, right and wrong.