Life's been good to me so far

None of the examples mentioned in the original post are particularly harsh - the differences in brain development depending on the mother's emotional state during pregnancy, the circumstances of birth and the first few years of life are quite well documented. I doubt that the woman who spoke at this event intended to lay on the guilt, it's simply very important information that most women are more or less unaware of, and it's much more vital to get the word out than to pretend like it's less of a problem than it really is so that mothers who didn't do everything perfect can feel better about themselves. The mother who doesn't know any better is as much a victim as her child.