The Ravens are the best team on paper in football at the moment, so I'm not going to say the sky is falling with any bad outcome. Injuries, fatique, etc., can all impact the Ravens later in the season, but I don't think anyone would say Beane's collection of talent is superior to the Ravens. That said, if we start losing to our AFC East rivals the sky will be falling. We still look good enough to win the division, but the defense needs to get better.
EDIT: Well, that was amazing. AMAZING!