In fact he states in Chapter two of the book (The God Hypothesis) that he is denying all Gods; and that includes deistic Gods. He doesn't need a book to deny theistic Gods because those books are not evidence, he dismisses them for the same reasons as he dismisses the deistic God. Their extra absurdities within the texts, if anything - simply make the theistic Gods more improbable than the deistic ones. They're certainly not any less improbable; because holy books are not evidence. The Bible is not evidence for God any more than the FSM Gospel is evidence for the FSM by exactly the same criteria.
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