I have read the article and nowhere have I found by real proof of how CIO or cc affects the adult the baby becomes, and you know why that is? Because like feeding, the decision to use sleep training is only one small decision in a huge box of decisions you will make for the good of your child.
Who can say that it is a contributing factor to any issues that may arrive, it could equally be too much nurture, too little, divorce, abuse, bullying, self esteem issues, eating disorders, domestic violence, tragedy...
Any number of random things that no-one plans for and no-one forsees can happen in the life of a child and can all be a deciding factor on how they turn into adults.
I could never see myself ignoring my child for an hour, but then I have never been at the level of sleep deprivation that others have ( there is a reason why the CIA used it in guantanamo)
In the end we all make the decisions we feel are best for our children, it is down to ourselves not to be intimidated into toeing a line no-one can define.