Of course it's systemic; most of the officials who let it happen in Ireland were Catholics too. That's the danger of a single religion having so much influence in one place. It will undoubtedly be happening to some degree wherever the Catholic church is 'caring' for or 'educating' children. The same structure that enables good people to do good things also facilitates abuses just as effectively, maybe more so. There will be a lot more scandal to come yet - India and Africa, for example.