Well, that may have been his plan, but you can bet he had conditions and precautions and an actual plan in place to protect and remove every American and those who had helped the American interests. You can also bet he would have never gifted these terrorists billions in weapons and ammo, air craft and vehicles, along with a list of names of civilians who aided the Americans, for them to hunt them and their families down to kill at a later date.
There is much to say about NO MAN LEFT BEHIND! Since when did we start negotiating with terrorists? Since when did Americans deem the Taliban an ally? You can bet one thing, if Trump were still in office, this would never have happened. He made it clear while in office if threats or harm came to any American from this group, he would bring down the fury of Hell on these people in a manner in which had never been witnessed before. Apparently they believed it, at the very least, they respected him enough to keep themselves in check.
The spineless dementia patient in the white house has made us appear weak and vunerable to the entire world, and they now have blood all over their hands. But then again, that's nothing new to this group of people, let's not forget Benghazi, the last group left behind!