No, modern Hebrew and ancient Hebrew mapped similarly well to the written script — the primary difference between the two is just consonant drift. Both used the same structure of triconsonant roots with affixed patterns, and modern Hebrew morphology is identical to ancient Hebrew (phonemes changed primarily due to consonant drift, but not its structure). Arabic, for example, is similar and similarly well-mapped to its script, as are other Semitic languages that are closely related to ancient Canaanite.