Good News on Saturated Fat?

A quote from the article:

In this particular trial, as in all of them so far, the high-saturated-fat diet (low-carb or Atkins-like) resulted in the best improvement in cholesterol profile — total cholesterol/H.D.L. In this Israeli trial, the high-saturated-fat diet reduced L.D.L. at least as well as the did the A.H.A. relatively low-fat diet, the fundamental purpose of which is to lower L.D.L. by reducing the saturated fat content.

So here’s the simple question and the point: how can saturated fat be bad for us if a high saturated fat diet lowers L.D.L. at least as well as a diet that has 20 to 25 percent less saturated fat?