Telling that you link to a religious writer rather than a science writer. I hope his theology is better than his science.
At any rate he writes: "
Proteins, DNA and RNA are extremely complex organic molecules that are essential for life. These molecules could not have originated through evolution". So he as started with an unsupported assumption and proceeds from there. Not surprising since he is a religious writer and accepts a lot on faith rather than evidence.
He then makes the same error of assumption: "
Natural selection requires living cells that are capable of replication, and living cells could not exist until these molecules were already in existence". Cells are incredibly complex assemblages of simpler life forms that took several billion years of evolution. Natural selection really only requires molecular replication and that can be done by simple molecules.
Once he's gone so terribly off the rails, the remainder of his article is just meaningless math.