I don't understand all of the physics/sci-fi jargon, but how do you suggest Pelinal would have been vulnerable to electricity?
Does electricity somehow disrupt the forcefield making the hologram solid?
I'm only asking since the Aurorans and Umaril use shock damage weapons in KOTN(which I suspect is the real reason you decided to say this - yet at the same time back it up with some mumbo-jumbo) and:
Well.. without getting too detailed into http://en.wikipedia.org/wiki/Quantum_entanglement, If the pair involved is a photon, and an electron, the electron will still exert EM force, despite having its momentum and spin governed by its quantum partner in the control matrix. this would allow the control matrix to use this phenomenon to use the strong force to manipulate normal matter, through the http://en.wikipedia.org/wiki/Electromagnetic_force
The relationship between such an artifical construct and its susceptibility to shock damage then becomes painfully obvious.
An electronic discharge would help to destabilize this entanglement matrix, and thus-- greatly disrupt its stability, by disrupting the entanglement state.
*edit*
This of course, GREATLY hinges on if the rules laid down by the earth bones parody traditional particle physics or not..... which there is little to no evidence for.
I am still of the opinion that Pelinial whitestrake was a myth echo, and that is where his powers derived from.