Because Pete is a boxer. The first few rounds you dance around, you trade some punches, you study your opponents, and you study YOURSELF. If your goal is the Super Bowl, a loss or two in September won't hurt your chances that much. Sure, it kills your chance of going undefeated, but how realistic of a goal is that? Accepting the fact that nobody really knows their own team completely on September 1st isn't giving up on the season.
Sorry if it disturbs some fans' feelings, but the annual "We're falling apart!" protests from the peanut gallery are as predictable as our slow starts. Kind of go hand in hand, as it were. Declaring that it won't get better this season is also a typical fan reaction. Much like the old days, when predicting a weekly loss would make you right more times than not, eventually these predictions of the team's demise will also be correct.
Me? I'll believe it when I see it. For now, I'm still enjoying the ride.
Oh, and I don't do fantasy football or Madden, so stats don't mean that much to me and I don't dream up pie in the sky scenarios of trading for a super star at every position by next week.