It's good that they're taking the steps now, and I'm sure like everything in life this crept on them slowly. Probably they had a really friendly, well loved priest that was caught once, and they didn't want to destroy the congregation with a one time mistake. And then it sort of snowballed ...
Like having a husband that hits you. First he just sort of pushes you and then apologizes. Then he sort of slaps you and then apologizes. Each time it's just a bit more so you feel like you can't complain about X if you've already put up with Y. But it's still all awful and none of it should be tolerated.
Society is always going to have pedophiles - they've been around since the days of the Greeks and Romans - so we just have to be better about finding them and dealing with them.