Not really. Some were concerned about their sacred number. Other simply threw out ridiculous numbers to pre-retcon anything that could happen and justify initiating the chain of events we all know to well. To test this hypothesis out: Let's say Biden unleashe his military onto Iran. The reason is that 3,33 Mio poor jews were slain with woodchippers by the mad regime. There's a huge difference wether these 3.33 Mio were factually slain or not. Now if we can point to the fact that the number 3.33 Mio was liberally used a dozen times under Trump to coax him into a war, this would raise quite a stink to the heavens. Wether they "foresaw" 3.33, 4, 5 or 6 million for whatever reason is not as relevant as the fact they threw out huge numbers as a propagandistic effort.

Also, not everybody is on board with everything. Some inmates truly believed it while some soviet planners will have meticulously debated which numbers to use as to maximise shock but also not overplay their hand.