The point they made about grade school, to me, points more towards early recognition now leads to more kids having a shot at top schools.

Not because they have a 'disability' or a particular type of accommodation, but because it was caught early enough and worked with by people that cared, that now they have a model for learning that better suits them. It was never an issue with intelligence, only that some of us* run into walls because the standard learning lane is pretty narrow. Crashing into those walls in grade school is likely what kept many people* from going to top colleges (or any college) -- but now that it's better understood and worked with at an early age we are seeing people show up who can do the same correct work, but do it in a way that's different.

* Im also dyslexic, but from the days that wasn't a thing in my mediocre public school. I was simply a slow reader that couldn't spell (or pronounce or "sound out" words) or read out loud, but somehow had high scores in other language/comprehension test.