I think he does a good job of refuting fundamentalism, but while I understand the pragmatic reasons why a Catholic apologist would do this, I don’t think this is the most important task.
Engaging more credible forms of Protestantism in a serious and respectful way would, IMHO, do a lot more in the long run to fight off the fundamentalist threat. Fundamentalism is a crude and simplistic version of Protestantism. It appeals to people because it offers, in very simple form, certain basic insights that Protestants do historically hold more clearly than Catholicism. It’s easy to refute the fundamentalist caricatures of Sola Scriptura, for instance. But as long as Protestants do in fact enunciate the orthodox principle of the supreme authority of Scripture more clearly than Catholics, many Catholics will be drawn to Protestantism. And since fundamentalists are the most aggressive and accessible promoters of this principle, they will continue to have a lot of success.