It's not just a pedantic issue. Making these kinds of extremely bold and all covering claims is par for the course for those who want to find and exploit attention from others for profit. If that's not what the author is doing I think the most charitable interpretation I can come up with is that they just have no experience with AI videos and are going off sensational press stories.
They should buy an nvidia 3060 12GB ($200~ second hand) and try out wan2.2 on their home computer. It's really fun to be able to make these kind of videos on a whim. And they'll get some real lived experience with the subject.