At this point in his presidency, George W. Bush had made 10 recess appointments. Over the course of his presidency, he would make almost 200. Bill Clinton made about 150. In describing recess appointments as "a rare but not unprecedented step," Obama made it harder to actually make any, because he's defined the procedure -- which, unlike the hold, is a defined constitutional power of the president rather than a courtesy observed in the Senate -- as an extraordinary last-resort. He also promised, later in the statement, that he wouldn't make any appointments this recess.
I honest to God, don't know what the hell Ezra is talking about because in the President's released statements from last night, he said:
While this is a good first step, there are still dozens of nominees on hold who deserve a similar vote, and I will be looking for action from the Senate when it returns from recess. If they do not act, I reserve the right to use my recess appointment authority in the future.