Vidquin - A "law" implies a statement of order and relation in nature that has been found to be invariable under the same conditions
This doesn't really work when this law creates a chain but doesn't apply to the first link in your chain. Whether that life is a universal common ancestor, or if each "kind" of life is its own creation, you still must ignore your "law" to account for the first link.
To ignore the first link, and to exempt God from the law, then to turn around and use this law as evidence in favor of God seems logically inconsistent.