That link says that blacks have reduced the gap with whites, not that they have eliminated it.
In "The Inequality Taboo" Charles Murray wrote:
"The most important change in the state of knowledge since the mid-1990's lies in our increased understanding of what has happened to the size of the black-white difference over time. Both the task force and
The Bell Curve concluded that some narrowing had occurred since the early 197O's. With the advantage of an additional decade of data, we are now able to be more precise: The black-white difference in scores on educational achievement tests has narrowed significantly. The black-white convergence in scores on the most highly "g-loaded" tests—the tests that are the best measures of cognitive ability—has been smaller, and may be unchanged, since the first tests were administered 90 years ago...
"So black and white academic achievement converged significantly in the 197O's and 198O's, typically by more than a third of a standard deviation, and since then has stayed about the same. What about convergence in tests explicitly designed to measure IQ rather than academic achievement? The ambiguities in the data leave two defensible positions. The first is that the IQ difference is about one standard deviation, effectively unchanged since the first black-white comparisons 90 years ago. The second is that harbingers of a narrowing difference are starting to emerge. I cannot
settle the argument here, but I can convey some.
"The case for an unchanged black-white IQ difference is straightforward. If you take all the black-white differences on IQ tests from the first ones in World War I up to the present, there is no statistically significant downward trend."
http://www.iapsych.com/wj3ewok/LinkedDocuments/Murray2005.pdf