It doesn't matter whether the design evidence points as far back as 5,000 years or 15 billion years or whether it is in math, information theory, physics or genetics.
Metaphysical naturalism lays claim to science of all kinds because science avoids religion. And science cultures its doctrine by defaulting the difficult and unexplainable into the anthropic principle. You can see if you agree by reviewing the end of this link: Cosmological Patterns and Galaxy Biasing (pdf)
One of these days, the public will realize that metaphysical naturalism is a religion.
What has happened I think is that since Darwin, science has been misused. Science is about discovering the truth regardless of where it leads. Most scientists, before Darwin and many after him, have considered their work as discovering the ways of God. As to the anthropic principle, it is nonsense. It is anti-science and anti-rational. Science is about causation and to say that something exists because it exists is a rejection of scientific inquiry and a rejection of the very human insight to ask: WHY?