So what is the utility of this article? It reads a lot like a sarcastic put-down of a group of people the author considers naive. I agree that modern witchcratf sounds naive and a bit silly, but haven't we had enough of internet put-downs of entire groups of people?

The author clearly has some valuable historical knowledge. She could have tried to engage with the targets of her snark, and help them see the errors of their ways. Instead, she addresses some third party that she invites to share in on the joke, that is on those dumb people who think medieval witches were pagan, etc. That just borders on an invitation to online bullying, and it's just wrong.