While it certainly isn’t news to us today, every additional observation that supports a theory is valuable, especially for theories about deep-rooted and hard-to-prove causality.
We can’t just go out traumatizing children “for science” to find out what the incident rate of mental health as it relates to different traumas.
Ironically, in the hands of an experienced practitioner, the pullout method is very effective at preventing pregnancy.
The problem comes when it’s a kid trying it for the first time having sex, or someone not in full control of their facilities towards the end of sex. Easy to get caught up and “forget” if you’re having a good time.