This should come as no surprise; it is, quite simply, only about the hundredth time people have reported on the aloof detachment of President Obama.   
Even Bob Woodward wrote an entire book in general about how disingenuous Dear Leader was/is toward fiscal policies, and more specifically his indifferent and bored outlook regarding negotiations with Congress that might actually involve work.  
Remember too, during the OBL kill/capture mission – Obama had to be dragged off the golf course; and then, according to Reggie Love, didn’t want to participate in the event preferring instead to play cards because his presence was required *near* the situation room.
(New York Times) With rebel forces in Syria in retreat and the Obama administration’s policy toward the war-ravaged country in disarray, Secretary of State John Kerry arrived at the White House Situation Room one day in June with a document bearing a warning. President Bashar al-Assad of Syria had used chemical weapons against his people, the document said, and if the United States did not “impose consequences,” Mr. Assad would see it as a “green light for continued CW use.”
President Obama had signed a secret order in April — months earlier than previously reported — authorizing a C.I.A. plan to begin arming the Syrian rebels. But the arms had not been shipped, and the collapse of rebel positions in western Syria fueled the atmosphere of crisis that hung over the June meeting. […]
Besides the Syrian government’s gains, there was mounting evidence that Mr. Assad’s troops had repeatedly used chemical weapons against civilians.
Even as the debate about arming the rebels took on a new urgency, Mr. Obama rarely voiced strong opinions during senior staff meetings. But current and former officials said his body language was telling: he often appeared impatient or disengaged while listening to the debate, sometimes scrolling through messages on his BlackBerry or slouching and chewing gum.
In private conversations with aides, Mr. Obama described Syria as one of those hellish problems every president faces, where the risks are endless and all the options are bad. Those views would then be reflected in larger groups by Tom Donilon, the national security adviser, and Mr. McDonough.  (read more)