Dang man. I cannot think that would be good. It looks like a brass screw holding that ESC to the frame. Even though brass isn't a good electrical conductor, it still has a low conductivity property.
So you had a prop come off the P2V? Does the motor still work? What's the description of the crash and damage? Can you tell if that is just dried flux from the soldering or is it actual PCB de-lamination around the soldered wires? Those soldered wires look kind of ugly and rushed.
From what I've read, opening the cover on the Quad voids your warranty although, I had mine off within a week of getting it to inspect for problem areas.
It sucks to have that happen. I'd be asking for a replacement even if opening the cover voids the warranty.