So is there a rise in satanism? Let's see what Google Trends can find:
First I looked up satanism by itself. There is no increase in searches for that term since 2004. It's really not that popular, I don't think. Then I did "satanism, exorcism". Exorcism has spikes, either from movies like Last Exorcism or "scary" vatican rumblings about the exorcism "crisis".
So, I guess they lied? Or they have no idea what they're talking about.
Anyway, a few things in this article stood out. First, they were written because the vatican hosted a 6 day conference in Rome regarding the "crisis". It was to give support to families and priests. Apparently "there is a particular risk for young people who are in difficulties or who are emotionally fragile."
Also, the objective of the seminars was to look at the "phenomenon" of satanism with "seriousness and scientific rigour". Uh, really? That's laughable!