The names of the human authors are useful because at the beginning THEY alone were chosen and given authority to spread the word of God. They were not given the authority to make up their own stuff:
Otherwise, it would not be Christianity, it would be something else. Only God has the authority to say what the faith is and He chose some at the beginning to transmit it.
The insistence that God "wrote" the Bible simply doesn't reflect the reality that the books are credited not to God but to humans!
Well, I and other Bible believing Protestants sure credit God for the books of the Bible. :) We say they are a gift from Him to us His children.
Who cares. The scribes who penned the NT Gospels did not identify themsleves by name. A lot of Orthodox copyists did the same thing thinking themeslves unworthy. Doing otherwise would be considered arrogant and vain.
Besides, if you believe there is nothing in the Bible that was not according ot God's will, then leaving thier names unknown was God's will that was violated when the Church added their names.
If your premise is correct about the contents of the Bible, then God didn't want them known, but the Church added them at the end of the 2nd century (against God's will accoridng to your suppositions).
So why does your Church then continue to violate God's will by identifying the books by the names of those God allegedly wanted to be anonymous?
Only God has the authority to say what the faith is and He chose some at the beginning to transmit it.
But the Church decided which books to include and who the scribes were.