According to Scripture, God gave his word perfectly and without error to those who wrote it down (e. g. 2 Timothy 3:16-17; 2 Peter 1:19-21; Deuteronomy 8:3; Psalm 119:89; Proverbs 30:5-6; John 17:8,17; 1 Thessalonians 2:13; Hebrews 1:1; 1 Peter 1:10-11; Revelation 21:5). By observation we think that the writers wrote in a way that reflects what we assume is their own language, backgrounds, and personalities. Our teaching should not emphasize that observation over the plain statements of Scripture.
Of course, there is a human factor to the writing of Scripture. Very few if any Bible-believers deny that, even if they do not agree altogether on the how that it happened. All of the writers-down of Scripture were humans. None were aliens, animals, or automatons, so far as I can tell. We know God can speak through an animal – Numbers 22:28-30 – but none of which I am aware ever put anything in writing.
In my opinion, the more and more people talk and write emphasizing the human factor, the more and more it sounds like they are saying the Bible is a human writing rather than a Divine one.