Yeah, you're right--WM and long-term are not the same, and I conflated them.

It's important for everyone to remember that neither of these links were written by the study authors. I read a ton of these press releases and brief clips every day; in some cases, I then read the actual journal article. In MANY cases, the press release/news piece misrepresents the actual journal article. (And I don't have a stats background, so I probably miss a lot of errors.)