Therapeutic crisis intervention (TCI) actually came out of a desire to reduce child abuse at care institutions. It was discovered that child abuse often occurred because caretakers did not know how to deal with conflicts and had to detain the children physically to stop violent behavior. This was leading to child abuse and neglect even though that wasn't really the intention of the caretakers.
So TCI was developed in hopes of resolving the cause of the problem. If caretakers can resolve problems and calm down violent children, then there wouldn't be a need for physical interventions. This in turn will reduce child abuse incidents. I think it's a great idea.