You made top 8 at Worlds with that deck, using Ophidian in place of Fact or Fiction despite the prevalence of Fish and Workshop decks (read: decks with blockers) at that time. But that performance was never repeated, and the deck essentially evaporated after GenCon, as I recall.
http://www.themanadrain.com/index.php?topic=19828.0http://www.themanadrain.com/index.php?topic=19588.0And as far as I'm concerned, what killed the deck was a superior draw engine in the form of Thirst for Knowledge and superior threats in the form of Goblin Welder. Control Slaver was what killed Ophidian as a viable strategy.
I have not read the article, as I do not subscribe to premium, but if the argument is whether or not a 4 FoF based deck would be able to compete with modern type one I'd have to give about the strongest no you could imagine. FoF is a slow, clunky, miserable draw engine in an environment where you rarely ramp to 4 anyway. Any FoF based deck would be mercilessly devastated by GAT, Flash, and Ichorid before it could cast a second FoF, and probably before it could cast a 4th.
That said, I don't doubt a 4 FoF deck would be viable if we randomly saw Bazaar, Flash, and Gush restricted.