Whose "concerns"? According to this chickenboy's own writing, we are taking the fight to the remnants of the Taliban in their mountain hideouts and caves. Maybe he is "concerned" because we are running down the scum as they flee on their horses and motorcycles. I supposed that might "widen" the area of combat by a few miles.
I bet the Taliban are more concerned about the widening conflict. 'Sounds like they are getting schooled again.
The picture I get is of a heavily bearded man driving as fast as he can down a mountain road like he was being chased by death itself. He's thinking "oh now I remember why we shouldn't try to hold territory" ! And there are hundreds of his dead buddies laying on the ground in back of him as proof.