It isn't really an article about criticism of Sylvia Browne. She's not being criticized for beating her children; she's being criticzed in matters relating to her public claims of expertise and ability. This isn't a BLP problem in the ordinary sense, any more than "criticism of George Bush's war in Iraq" would be. And it would be simply impossible to have a similar article about you or me or the typical BLP subject; we haven't done any big public things that could be criticized this way.
To be accurate, it probably should be called something like "Criticism of Sylvia Browne's alleged psychic activities", but there's nothing wrong with having the article itself.