I was surprised at the assertion that 1/3 of autistics (in one study) or 1/10 (in another study) have splinter skills or something like savantism. It seems like a very extreme assertion, which could be greatly skewed by bias sampling or varying definitions of what a splinter skill IS. I have perfect pitch and am a really fast, accurate proofreader, but neither could be called savantism by anybody, and I can't play an instrument at all.
I thought they did make a good point about IQ tests not being a good measure for autistic people. I get a wide point spread on different tests: Wechsler 108, Stanford-Binet 132, Raven Standard Progressive Matrices 153.
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Diagnosed Bipolar II in 2012, Autism spectrum disorder (moderate) & ADHD in 2015.