The withdrawal from Afghanistan was far more damaging and abrupt because it began on short notice at the height of the summer fighting season.
The "summer fighting season"? Is that their idea of a vacation? A sporting event? What are they fighting FOR? Or do they just like to do it?
And why should we have to deal with it? Why shouldn't the AFGHANS who'd rather live peaceful lives deal with it? But what did their army do? It ran away.