New Afghan opinion poll

A new BBC poll of Afghan opinion has been released. The poll is an annual one that has been conducted for a few years now.
This year it seems the Afghans are more favorable to the presence of US/NATO troops and even to Obama's surge. This is surprising since the trend over the past years was toward an increase in opposition toward US/NATO troops.
Juan Cole is skeptical of the poll because he says that given the deteriorating security situation in Pashtun areas, the poll is more likely to represent the views of the non-Pashtun population, who are more supportive of US troops as they have gained from the removal of the Taliban and are not targeted by NATO airstrikes etc.