I never liked the malnourished phrase 'the skinny'.

Biden did not have to carry out the Trump plan. He could have and should have scrapped it and organized a new improved exit strategy.
Now Pakistan is full of radicals who are emboldened to assume government control and inherit a nuclear armory from the infidel cooperators of the current Pakistan government. Thats one of many dreadful possibilites of this procrastinated bungled scramble from Bogram airport.