Obama himself didn’t do anything in the example you gave. Presidents don’t lead through their press secretaries. Besides, the press secretary was simply snapping back at those on the left who were being critical of the President.
Look, I feel so bad for you that I’ll give you an example of when Obama showed some real leadership. When Obama worked out a deal with republicans to extend the Bush era tax cuts, it was an example of real leadership. He believed he had to do it and knew he was going to take a lot of heat from both parties but he took control of the situation and basically went over the heads of Nancy Pelosi and Harry Reid to get a deal done that he knew he needed to get done.