That's alright...I am trying to figure out what part of that statement actually stumped you. Ryan calls for other teams to step up and beat the Patriots. EK listed four teams that actually did beat the Patriots last season.
You're surprised that I can't figure out how four teams beat a 14-2 squad?
Anyway, the riddle has been solved: EK was counting meaningless preseason exhibition games as "wins." I guess technically, the Lions weren't winless in 2008... they actually won all four of their preseason games!
P.S. That's an interesting interpretation of the term "last season" you have, there.