Yeah, no. He almost entirely verbatim copied the text and wording on the original article and shuffled some words around to try and make it less obvious (and failed). It is blatant plagiarism, there is no other way to call it. This was no innocent mistake of forgetting to list a source. Watch the hbomberguy video segment about it, it paints a very clear picture.
Slander?! I resent that. In print its libel.