Gary McMahan

So I was just looking at Gary Mcmahon's blog and I saw where recently in February he found out his article "The Hills Have Eyes: The Hate Outdoors" would be published in Butcher Knives and Body Counts. This book has essays on slasher films. Could be interesting considering that movie definitely has a few body counts. But I wonder why he would write about slasher films..is he more interested in writing about horror than fantasy??
This question is for you Andy...