My reaction too. It was a no-brainer, though. Of course someone had to write the books of the New Testament, and of course someone had to choose which ones went into the Canon. The Holy Spirit didn't dictate the Scriptures, nor the list of the Canon, but they reasoned, prayed, and allowed the Holy Spirit to work through them to do so.

The other thing to note is that the Jews didn't have a set Canon, despite what Protestants want to believe. The Sadducees only had the Pentateuch, the Pharisees had the Torah (which I think is smaller than our Canon), and IIRC the Essenes had a much larger Canon (possibly all that was found in the Dead Sea Scrolls). The Church had to determine for Herself what was to go into the Church's Canon.