You obviously love it, and make your case well.
A friend also pointed out to me once that "Flux-capacitor" aside from being a bunch of invented pseudo scientific nonsense is a bit of an electronics oxy-moron as well.
A capacitor is a device a bit like a battery. It can store and rapidly release a charge. The flash attachment of a camera is a good example of a device that is based on the properties of a capacitor.
Flux which is a bit more nebulous of a term: in electronics it represents the flow of energy, so it's a measurement term. When you put the two together, you have:
"Flow measurement storage device." When you think about it, there's no real way to reconcile the two ideas.
I guess we can just add that to the whimsey and imaginative invention that came from Zemeckis and Gale in this ground breaking series (the first by the way to utilize the now common place practice of doing principle photography on multiple sequels in a series, which has subsequently been employed by the Matrix and the LOTR series.