Yes, Cybertronic is a facet of the dark soul. I base this accusation on material found in the RPG and it's source books.
The thinking machines started the first corporate war, and created internal conflict to weaken humanity before the invasion by the rest of the the Dark Legion forces. When it was discovered that technology could be corrupted thusly, it was banned. The creation of Cybertronic was just the mecahnism of dividing humanity that precluded the second invasion. In order to accomplish it this second time though, without machines to taint, it had to find a new strategy. Instead of pitting humanity against each other through manipulating the thinking machines that ran their societies it instead decided to divide us by undermining the teachings of the brotherhood. Cybertronic meets the needs of this new strategy perfectly - it's formation under legal means, and use of technology banned by the Brotherhood, was a blow to the Brotherhoods credibility. The time period when Cybertronic was formed was so long after the first comming of Darkness that a lot of people where skeptical that it ever even happened. There was a movement claiming that the brotherhood invented it as a means to control society through fear. Cybertronic's creation and appearent lack of dark influence supported this. In addition to providing a blow to Brotherhood authority, it also launched the second corporate wars. Imperial and bahaus, the ones with strongest ties to the BH, went on crusades against them. Mishima, who are a bunch of heathens anyway, became sort of "mutual interest" allies. Capitol remained neutral on the issue of Cybertronics alignment, because it was economically profitable. It was only after humanity was weakened in these ways that the darkness returned - and the pattern which was written on the luna cathedral walls was repeated. Like mark twain said "History may not repeat itself, but it does rhyme a lot". The Brotherhood was there to try and make sure we recognized that and were prepared for the next rhyme......Cybertronic was the mask that hid it from the general public.