RAM being super expensive right now is a hot topic, and I imagine people are curious about why, so anything that purports to explain that is somewhat likely to at least get a cursory look from people. Without taking a stance on either whether this is happening here, if enough people look at something and happen to think it makes sense, a lack of evidence might not be enough to prevent the narrative from taking over; otherwise, we'd never have issues with people believing false things in the first place, and that happens all the time.