Not every Christian slanders Wicca. And bad press isn't always deliberate slander. Remember, the media is not The Enemy. News writers are not Evangelical Spreaders of Lies. Of course, not everyone is good and kind and well-intentioned, either.
Vicious journalists do exist, and they're out there.
Simple misunderstanding is much more likely than deliberate calumny. Assuming that everyone's innocent until proven guilty. Ascertain whether the offending article is meant to be news or opinion. So, understandably enough, plenty of us were plenty irked by Mr. Kirby's nonstop mockery. We wrote a gazillion letters to the editor, complaining about Mr. Kirby's sloppy news journalism.