My God the writer COMPLETELY missed the point of Dawkins' example.
Cumulative selection is the key to understanding evolution. No one in their right mind (except creationists) argues that proteins and other macro-molecules arose in one step.
Evolution by its very definition postulates that these processes occured gradually.
Why is this simple concept so repeatedly misunderstood?
Because the creationist manure-mills keep spewing mega-tons of disinformation about it.