I don't think it does unfortunately. It's an interesting study but this article — either through the original research or its coverage — is distorting appropriate interpretation. It's common of a lot of neuroscience research. The task, too, taps an ability/process that's thought to be key to intelligence, but isn't that distinctive, and is found in a lot of animals. Again, interesting study, crows are smart, but not exactly what it's being billed as, like you say.