While the author of the article I linked to does seem to be biased, the same could probably be said about your the authors of your study. With that said, if what he said is true about your study, that could be a problem for its accuracy. If there are flaws in a study, that can be a problem regardless of any bias of the one pointing it out. Not to mention, from an intuitive standpoint, 99% seems suspiciously high. Actually, looking at the site the news article links to, the percentage reported by the study may actually be 95%, not 99%.
As far as the link being in the article, I would say it's still good to be as direct as possible, although it looks like it's not a link to any journal article, but to a page discussing the study with a bibliography, which appears to include the papers generated from this study. The apparent inaccuracy in the news article's reporting of percentages, would be an example of a reason to link to articles themselves. Some studies may be difficult to understand, but maybe abstracts would be sufficient in some of those cases.