“Counterfactual certitude fallacy” would be a corollary of historical fallacy, as in any claim of certainty that a simple alteration of a particular fatal decision would have necessarily led to an on-balance better course of subsequent events.
#World War I
If At First You Don’t Succeed… – WORLD WAR ONE – a Short History by Norman Stone
The point was supposed to have been progress, or loyalty, or self-defense, or empire, or enlightenment, or democracy, or honor, or justice, but the arc of modern history bends toward irony.