If you really want, you can always find a "gotcha" when subjects that can fill whole books are reduced (for the purpose of creating a web page) to two sentences.
You doubt? So write them, ask what "natural selection" has to do with "the origin of the first self-replicating organism".
Your link, 3 pages forward. So, perhaps they see, after all, the distinction between "origins" and SUBSEQUENT "natural selection"?