Dyslexia was my first thought as well. The intent is great, but I don't know if this is keeping with the social model of disability. Disability is created when you remove access and this is exactly that.

The internet has been full of brilliant dyslexics since the start, just as it has been full of brilliant blind people. Dyslexic people feeling that they must use AI to produce perfect prose lest they burden the lexics with clumsy spelling or grammar is far more hostile. We didn’t have slop machines 5 years ago.