The white elephant in the corner that makes me say they have been "duped" is this;
We don't know (for sure) what kind of sex education these teenagers were receiving. It's not stated in the article. Unless they were receiving abstinence only education it's no basis for eliminating the program as was widely lauded based on the original article.
one last tidbit.
The original study took information from students in 1995, 1996, and 2001.
Federal AO programs didn't get signed into law until 1996.