The fear is that some organizations may be working hard to make dyslexia sound like a disease to be cured and treated with great expense, rather than a different way people's brains work. After all, most agree now that there is no "cure" for dyslexia, nor does there need to be -- the money should be spent on research and technology to help dyslexic people build the skills they need.
It would be easy to view this as potentially harmful for the cause. To some, this research is also a business.