NO NEW FEATURES was indeed marketing. There were many new features. However, as your list shows, the vast majority of those features were under the hood improv

NO NEW FEATURES was indeed marketing. There were many new features. However, as your list shows, the vast majority of those features were under the hood improvements that had little to no user interface changes. And that’s what Apple meant by no new features. Their work in Snow Leopard was entirely focused on improving the underpinnings of Snow Leopard through both bug fixes and infrastructural changes.