We know that the Holy Spirit would not contradict Himself and we know that Scripture is God-breathed. ERGO, whatever we might think is a contradiction, it can't be and it's up to us to study the Scriptures to determine what is being communicated. On the other hand, what some church bigwigs get together and decide is their "truth", may or may not BE the truth and they could very well come back later and walk back what they previously stated was "infallible" truth. The Roman Catholic church - though they are hardly alone in this - has been caught doing this more than a few times. They might come along and try to explain it in "lawyer" speak so as to not admit they just contradicted themselves, but it is obvious to those objective enough to see it.
You're comparing apples to Thursday.