Dyslexics are known to be particularly strong in seeing the big picture, getting to the heart of issues, delegation and teamwork and creativity. And you are filtering them out because they made some spelling mistakes.
No, as I've said twice already I'm filtering them out because they didn't think that submitting an application with poor spelling and/or grammar might disadvantage them. Communication skills and judgement are key skills in the people I recruit. Not bothering to get their application checked shows poor judgement.
As we obviously aren't going to agree on this I'll make a deal - next time I get a load of CVs with errors, I'll forward them to you!