In fact, the first thing I wondered when I saw this headline is whether or not it was related to some new experiment he was doing on himself.
Well, there are "rumors" of links between eating too much fat and cardiovascular diseases, and he was abusing butter as of late...
And there are also rumors of no links whatsoever: http://www.ncbi.nlm.nih.gov/pubmed/18615352
Well, the overwhelming majorities of publications see a link, the fact that some see none IMHO shows the limited usefulness of those epidemiological studies way too many parameters to be close to a controlled experience...
The author of that paper your linked, Uffe Ravnskov (http://en.wikipedia.org/wiki/Uffe_Ravnskov) seems to be part of a small minority holding this belief.
Like the other commenters here, I will miss Seth's writing. He shared so much and influenced so many others. He had both the curiosity and the courage to try crazy things and shared what he learned with the world. RIP, Seth.