If you look in the upper right of the page, you can see RJMetrics current logo, which is the original logo but with a right-side up Y, not the one shown at the end of the article.
It's funny that you see it as flipped upside down. I see it as flipped left and right. In terms of whether the Y is up or down, neither of them are, but the original one had it leaning right, and the one currently on their page has it leaning left.
