3 ideas
Years after the crucifixion, an aged Mary lives in Ephesus, housed and watched by two of her son's followers who are writing an account of his life and want her to confirm it. She tells a different story. She admits she fled Golgotha before her son died, out of fear for her own life, rather than keeping vigil at the cross, and she refuses their claim that his death redeemed the world, saying flatly that it was not worth it.
A death justified as serving a larger cause is only justified from a distance. For the person who loved the specific body that suffered, no future benefit to others cancels what was lost. Framing the death as purposeful asks the bereaved to trade her grief for a meaning she never agreed to.
The people building a founding narrative value an eyewitness for the authority her assent confers, not for what she actually remembers. So they supervise and pressure her, keep the details that fit, and treat her contradicting details as errors or grief. Read a canonical account this way and you ask who was present but overwritten, and whose confirmation was being sought.