I don’t think calling this a traumatic syndrome makes sense. It talks about people who masturbate prone sometimes having trouble orgasming in normal intercourse or with their hands. Presumably because it’s higher stimulation. Apparently this is a problem.
To me, that’s like saying only have sex with loose people you find unattractive, because if you have more pleasurable sex with a tight attractive person then you won’t be able to get off from the stimulation you receive with someone unattractive and loose. I’d rather go with the more pleasant means of autoeroticism. Bonus is clean hands!