Projection - every writer for the Slimes is just another animal in the forest.
In order to give this opinion, this “Darwinist” has to ignore the unique and unprecedented accomplishments and abilities humans have. The opinion portion of his diatribe is his faith which he attempts to prove, a heartless and impossible task. In the end, he is just poking people with a stick, joyfully anticipating the angry and often religious response. A troll in other words.
You must, must understand that the good professor here is simply playing word-definition games.
He does not tell us anything that he might consider "supernatural", but that is less important than the fact that the very word "science", by definition, natural-science only looks for natural explanations of natural processes.
In other words, it is literally and physically impossible for a scientist as-scientist to see super-natural events, or their Cause.
So just suppose: if the good professor were to see a super-natural event -- i.e., a miracle -- as a scientist he could not recognize it as a miracle, and if he did somehow see the miracle in it, and tell somebody about it, then our good professor would no longer be speaking as a scientist, but rather as a normal, religious human being!
So, don't you see -- it's all word games; since science by definition cannot see the super-natural, any claim that "no literally supernatural trait has ever been found" is just, well... do you "get" it?