Fact: There were numerous Pakistani military 'advisors' on the ground in Afghanistan, including in Konduz. When the areas were overran by NA, there were no Pakistani military there. There have been many reports, particularly at Konduz and Kandahar, that Pakistani flights were allowed in and out to remove their people.
I tend to believe these reports. Notice Rumsfeld's wording.."No one, that I know, in—connected with the United States in any way, has saw any such thing as a major air exodus out of Afghanistan into Pakistan." All depends on how you define 'major air exodus' now, doesn't it?