Spot on. The Criterion of Embarrassment is a powerful tool here; the fact that women were the primary witnesses to the resurrection is a classic example, given that a woman's testimony held little to no legal weight in 1st-century Roman or Jewish contexts. If you were inventing a myth to gain social traction, you simply wouldn't write it that way.

Your point about verisimilitude extends to Onomastics as well. Research shows that the New Testament Gospels accurately reflect the specific frequency of Jewish names in 1st-century Palestine. In contrast, Gnostic texts often use names that don't fit the era or geography, frequently showing 3rd-century Egyptian linguistic influences instead. It suggests the canonical authors had "boots on the ground" knowledge that the later Gnostic writers lacked.