Well actually plasma is more electrical than other matter. The process of ionizing anything means to give it a positive charge. Plasma is literally formed by ionizing gas, thus making it electrical in nature. Something any noteworthy science site/journal will inform you.

and I'm aware we commercially use plasma in pig tail bulbs. But we currently do not have the tech required to make beam weaponry out of it of any reliable sort(giant portable batteries). Not to mention plasma can move as fast as the gun dictates since plasma can be rapidly generated by superheating vectors of oxygen, and can extend after the initial ignition source for miles in literally no time. 

but if you two have reached an agreement then consider my 2 cents null in void.