Nobody said that. They are saying or insinuating that 38% of successful students are unlikely to be disabled. That certainly was not the case as recently as a decade or two ago. People have not changed drastically, so what gives?

> They said that 38% of successful students are unlikely to be disabled.

Which is an unreasonable claim.

I have a disability that impairs many aspects of my life. I was still capable of getting through college and am successful in my career. Having a disability does not mean you can't do academics.

Change in diagnosis criteria, that doesn't mean people before weren't disabled. You need to understand people with ADHD usually overcompensate to meet the academic performance needed and it is not sustainable in the long run. It also doesn't mean they need accommodations, just that they are categorized as disabled in some way or form.