Gone back and read the piece again. Can't see where they're doing that. I really do think you're massively overreading there.

Getting from "There are too many Tolkein clones" to "Anyone who likes mainstream fantasy is brainded" and then following it up by slagging off the lit-world is not just hypocritical, it's phrased in such a way as to put off the vast majority of people who might be interested in engaging with what you're saying.