The answer to your question is fairly easy. Obama wanted a photo-op with Bergdahl's grateful parents to show America that no soldier is left behind. His intention is to distract us from the way our ex-military has been treated by the VA, and how he and Hillary negligently and dishonestly allowed the situation in Benghazi to occur.
With a compliant media on his side, the dem talking points are: "It doesn't matter what we had to give up to get an American hero back. He is now happily going to reunite with his family."
The fact that Obama broke the law by not giving Congress 30 days' notice will be explained away ("exigent circumstances; Bergdahl's health was in danger") and glossed over by the lamestream media.
The fact that the trade sets a dangerous precedent is also being overlooked. The most ridiculous parsing of words I heard from yesterday's designated dem liars was: "We did not negotiate with terrorists. We negotiated with the government of Qatar." Right! That's what I call a distinction without a difference.
Allen West was right when he said the Taliban are not a nation state, they have no uniforms etc. They are simply a group of organized terrorists. So Obama was negotiating with terrorists plain and simple and the GOP should be raging about it. But they are gutless and they wont’.
Barry is probably using this as an excuse to empty Gitmo and we will see other releases coming in the next few mos.