Now, this might be because I muted the video and skipped through reading the captions after the "epic" music and the repetition of the word "pseudoscience" got too annoying half way through, but I can't even tell what the change was. Is the wayback machine screencap meant to be "after" or "before"? Who knows?

Either way, treating an edit to the definition at the top of a wikipedia article as being an attempt to change the definition of the term, as if wikipedia's editors have that much power is, well, as ridiculous as I'd expect from the things a flat-Earther says.