Nothing in Sherman's book strengthens the argument for the bible codes. I wonder if Sherman looked for rambling, semi-cohertent sentences that could be twisted positive messages about Allah. Because if he had looked with the same zeal that he looked for such things about Jesus, there is little doubt he would find them.
Relying on such obvious nonsense as the bible codes cheapens Christianity. It is of no surprise that few, if any, Christian organizations have adopted this "evidence". Bible codes is simply crass numerology, wrapped up in a pretty but insubstantial parcel of impressive-sounding statistics.
You obviously have not read the book.
It is scholarly in the extreme, and deals with all aspects of the question. The proof is irrefutable to any mathematician that uses statistics.