What they do or not do is not up to the church, is up to them. The catholic church didn't tell them to abuse someone. Did a local catholic church help people wanted by the law or convicts escape the law (and also extradition)?

Now, if the church took someone accused as a child abuser (that somehow the law neglected to convict) and moved them in another country in a church position they still work with children, then sure, we can condemn the church authorities.

In the eyes of the church, even flawed people that did abuse can be accepted and transferred to positions where they cannot do such harm (e.g. in a monastery). The church was created to welcome flawed people and to help them, not to ostracize and condemn them. It's role is not even to hand them to the law, if the law doesn't ask for them (which is also why something confessed during catholic confession, even a murder, is not supposed to be revealed).

(I'm not Catholic btw, just reasoning based on their principles).