Not only does your logic bending (to for some reason avoid the basis of wartime morality?) fail in its own premise as the Taliban is not allowed to meet your standard as they are not a sovereign nation able to be a signatory, the convention itself does not work as you imply:

"this Protocol must be fully applied in all circumstances to all persons who are protected by those instruments, without any adverse distinction based on the nature or origin of the armed conflict"

Random Afghani civilians are not the Taliban.

(Aside from the fact that the Geneva Convention doesn't work that way, as the other guy pointed out.)