I think it’s exactly the opposite. The threat of exposing the CIA station chief is leverage on the agent. Exposing the agent removes that leverage - what would stop him exposing the swap of terrorists for a deserter?
This CIA agent surely knows our open borders and importation of Muslims leaves him no safe place. He needs Obama to protect him now.
I read the article as meaning that the outing of the CIA station chief was a “show of good faith” on the part of the administration; a way to say, “we’re serious about this trade.” So Obama tells his Muslim buddies that he’ll out the CIA head so they know who’s leading it all, that’ll give the Taliban a little breathing room (maybe the CIA was on to something?), and the “prisoner exchange” was a cherry on the top.
I could name 1/2 dozen things, but... the same thing stopping all of the people who were on the ground in Benghazi from telling the truth.
Do not underestimate Obama's pettiness. For the station chief to even express disapproval, would have been enough for Obama to lash out.