Trump was getting ready to leave the *right* way. His ‘secret negotiations’ with the taliban were him telling them that if they did something stupid as the US forces were withdrawing or after, he would send the Air Force back and bomb them into oblivion. Those were his conditions.
Have they done anything stupid? A few chaotic scenes at the airport. The handover has been mostly peaceful. The president Ghani has left (with suitcases full of dollars, ironically enough).