It looks to me like the VO skewers could be undone easily by Vise Grips, but the PitLock nut is inside a shroud so it could not be defeated so easily.
Agree in general with the "if someone want <x> badly enough" ... threadless headset scenario, but the PitLock ups the ante on the science project at least an order of magnitude, and well into the "how bad do they want it" zone.