Ok, so going back to 1980, only 1 Olympic champion has also ranked #1 in T&FN at the end of the season -- Noureddine Morceli in 1996. Some have ranked as low as 5th (Peter Rono in 1988), so winning the Olympics DOES NOT guarantee you #1 ranking, far from it, actually. Centro is just continuing the tradition of Olympic champions whose season credentials weren't enough to get them to #1.