Books have been written about the "Stalin Personality Cult", his enormous personal power and his perfect control over all matters of state. And you dismiss this with a few cute remarks.
For your remarkable claims, you will have to provide MUCH more evidence. Try this: google Stalin and start reading.
also let me caution you that probably unlike you I have actual experience living in Soviet Union (not under Stalin, fortunately) and getting to know the "evidence" first hand.
But it's not just oversimplification of collective action, the plot was overblown even at the level of purely individual events in individual characters' lives. Arguably the greatest theoretical/experimental crossover physicist of the century takes the occasion of accepting his Nobel Prize to escape with his Jewish wife from Il Duce, and a few years later stands musing over a nuclear chain reaction in a secret project in Chicago? Puhleeze.
Not only that, but the reactor is in the basement of the University's stadium. Whoever wrote that one must've been reading Spider Man!