What a joke of an article. Trump's withdrawal was always conditional and it did not involve abandoning people, equipment, etc. and also did not involve giving up the Bagram Air Force base and our intelligence footprint.
There was an agreement with the Taliban that called for total U.S. withdrawal. What would it have taken for Trump to refuse to abide by the deal? Hard to tell. Trump really wanted to get out. He'd made that clear all through his administration. I think it would have taken a lot for him to change his mind.