Third, "If a scientist claims that science asserts the non-existence of an object that is, by definition, not investigable, like a deity outside time and space, then that is not science, no matter who makes the claim."
There are a number of thoughtful comments on the article by Wilkins, from several viewpoints.
I agree with Ruse on this matter. No one should be allowed to say, in a public school science textbook, or in a public school science class in the US, either that science has proved the existence of God, or that science has proved the non-existence of God. Neither is true.
It is important to consider the word "Creationism." Ruse appears to be using it in the sense of "belief in a supernatural creator." If that is what the word means, then all Christians, as I see it, are creationists. However, the word is also used as short-hand for "Young-Earth Creationism." All Christians are not Young-Earth Creationists. See here for an analysis of strengths and weaknesses of different views on origins held by Christians.
Thanks for reading!