Maybe not that surprising that this many people hit it.
There have been some pretty large favorites on the board the last couple of weeks, and all of them have won straight-up. Who wouldn't take Washington or Indy this past week, or Atlanta last night? I mean, you could take someone else, but those were by far the 3 biggest favs on the board, so the majority of players are going to play those. And as long as the 3 biggest favs on the board keep winning SU you're going to get a ton of people just hoping on the tie-breaker. It's really been pretty easy to go 3-0 lately. I'm 18-0 now after missing Week 1 ... and that still only puts me in a tie for 300-somethingth place. About 15 people are 21-0.
I think the way to win this is to avoid picking one or two of the huge favs to begin with, and hope a huge fav loses SU, which would wipe out the majority of your competition. If you are going to take the popular picks, I'd think you pretty much have to pick a score which requires a safety and get lucky as hell to get the exact score that way. Either that or enter this contest the minute it opens each week.