Rome's weirdly selective sexual morality

According to this:

ALBANY — A consultant to the Vatican’s highest court is calling for Gov. Andrew M. Cuomo to be denied holy communion because he lives with his girlfriend without being married to her.

Is this the same church that has done so much to shield priests who prey on children? Whenever the Catholic Church makes a pronouncement on sexual morality, I preface it with "Pedophilia is okay, but ..." to see whether it still makes as much sense.