The NYT told readers that:
"The tepid jobs report provided more ammunition for Mr. Obama’s Republican rivals, who seized on Friday’s results as further evidence of what they say is the president’s ineffective stewardship of the economy."
This is true, the Republicans did blame President Obama for the weak economy. Of course President Obama requested more stimulus than Congress approved and he just asked for another round of stimulus that would likely involve more money in 2012 than his original stimulus package did for either 2009 or 2010.
This means that if the jobs numbers had been good, it would have provided ammunition to Republicans to denounce President Obama for unnecessary spending. At this point, it should be evident that the Republicans will use anything in the world as ammunition to criticize President Obama. Therefore, it is not especially newsworthy that they used the jobs report for this purpose.