Khan Academy as dyslexia mapping tool

Imagine if you could collect data on spelling errors and automaticly analyze the data in order to indicate the probability of dyslexia? It wouldn’t be able to tell if someone have dyslexia or not, but it might tip the parent/teacher (or the student themselves) that they could talk to a professional. Too many smart kids are able to compensate for their challenges and don’t get to excel to their abilities.