I'd say that Ceausescu was a nationalist. So Orthodoxy was good, as it was 'Romanian' as long as the church didn't step on his toes. My father was a teacher. And the teachers in my village were expected to go to church on Sundays and identify which children went to church so they would be 'explained' the uselessness of religion.
Of course there was a part of the hierarchy in good relations with Ceausescu. They were, after all, planted by the Securitate.