Hmmm, I am unfamiliar with this case, as I've been out of the Harry Potter fandom for several months now, and only marginally there before that.
I did find your commentary quite thought provoking and intriguing as I had known for some time she had praised the Lexicon before. I would have thought she would have been happy to have it published. I think perhaps you are right and the fame of Harry Potter has gotten to her head a bit. which is a shame.