Earlier quoted context omitted.
So he "literally" said he won't do anything about it until children can muster the courage and resources to prove in court they were abused. This is "why didn't she go to the police" for children. The police are not to be trusted, certainly not to against the Catholic Church.
Then who should investigate? The church cannot do anything to anyone they investigate other than 'order' them to remain in a monastery (which, they can leave at anytime since this is a free country and church rules are not law).
Not to mention saying things like "we disapprove of this behavior".
Overall, I think your claim that the church cannot do anything except the one thing you named is obviously false. There are in fact many things the church can do. Otherwise nobody would give a damn who is Pope. Just a guy who can not do anything.