Decades ago I worked at a chemical plant that put out huge volumes of steam from a central draft tower. The steam clouds would float up and form bigger clouds than the one in the video. If you drove in the any direction just a mile away, the sky would be totally clear again because the massive cloud dissipated in a short distance. Even if there were other clouds around, the clouds from the plant did not add to them, even when at the same altitude. The whole surrounding area did not get any rain from these artificial clouds. Perhaps it would have under special conditions, but that just means the process relies on an atmosphere that is already predisposed to make rain. It just doesn't work the way people would like to claim it does.