Well it's not the worst anymore. Just feels like it.
2007 actually finishes almost 50 runs ahead of 2011. Last year's 624 RS is the worst since the team came to DC. Depending on how Harper does long-term and how long we're without RZ and Morse, I think this year's team has a real shot at "beating" that record. 700 runs is a pipe dream, IMO, but I'm sure some will say otherwise.
Still, the extra wildcard this year will lower the bar.