Proposed Changes in the Definition of Autism?

It's still in the preliminary mode, the American Psychiatric Association is working on updating the Diagnostic and Statistical Manual of Mental Disorders so it is reviewing the proposed changes.

What really bothers me is the quote:

“The proposed changes would put an end to the autism epidemic,” said Dr. Fred R. Volkmar, director of the Child Study Center at Yale University School of Medicine and an author of the new analysis. “We would nip it in the bud — think of it that way.”

How are they really ending the epidemic other than reducing the number that get "officially diagnosed"? There will still be children on the spectrum that will need help, but might not get it under these changes. This doesn't seem to be progress to me at all.