I didnt' read the article, but my 2 cents on the traction thingie is...
given a wider tire, and everything else equal (circumference, tire compound) the wider tire will usually handle better because it has more time to cool IF overheated, thus staying within it's operating temp. So for each revolution, the wide/short patch is in contact with the road for less time than a long/ narrow patch. Even though the area/contact patch is the same for both, the wide/short patch is spending less time overheating and that much more time cooling down.
In adverse weather a skinny tire "cuts" deeper into the snow and rain increasing your chances of pavement contact. And if you don't scratch pavement, the skinny tire has more directional control because it cuts, whereas a wide tire spreads out the load like a snow shoe or ski and ends up hydroplaning or skiing rather than scratching the pavement or carving a path.
If you're on ice with rubber, then I don't think it really matters DOH !
Ummm....anyways, that's my story