Stephen, I am very glad you checked in with your awesome memory! I’d completely forgotten that that essay is in The Mythic Dimension. (And apparently so did Bob! lol) This makes matters MUCH easier as I don’t have involve HarperCollins in filing a DMCA notice. I did send an informal, if strongly worded email to the address provided on the site for the content to be removed before things get ‘official.’
Hopefully someone is paying attention!