You're wandering in "if a tree falls in a forest . ." territory here.
I believe that there are things concealed in scripture yet to be discovered. It is the nature of God' s word. (Proverbs 25:2).
When Proverbs was written, the fullness of God's revelation through Jesus Christ had not yet occurred. You're using that verse almost to deny Scripture as a matter of General Revelation (i.e., Truth revealed to all).
When something new causes us to examine our doctrine, we cannot measure how much departure it causes to determine if it is OK.
This sentence is a bit opaque.