Too much prooftexting, disconjointed discussion. Sometimes a passage was just a vehicle to tell an anecdote or give advice on interacting with a blind person. Not a terribly profound interpretation of texts (sometimes took too much offense to examples of biblical stories involving blindness -- any other marginalized group could do the same thing with the bible).
Never pulls out an overarching theme or implication, so those 'messages' he does pull out are sometimes in conflict with each other.

And it didn't give me too much insight for my course paper. ( )