Unknown hands dragged Harry roughly off the ground, before he could stop them, someone had rummaged through his pockets and removed the blackthorn wand.
Somehow Harry connected these unsatisfying, vague images with the destruction of his wand, as if it was the blackthorn wand's fault that he could no longer see into Voldemort's mind as well as before.
Harry could not help but remember how Hermione has dismissed his loathing of the blackthorn wand, insisting that he was imagining things when it did not work as well as his own, telling him to simply practice.