Is this a contradiction or am I reading it wrong? Genesis 5:28

[Anomalocaris]

an opinion is a bare assertion unless there is obvious good reason for the opinion, and more subtly but more importantly for the purpose of the credibility of the holder of the opinion, there is evidence that the holder of the opinion is willing and capable of changing his opinion when confronted with reasonable evidence of the inadequacy of the opinion.

A person who believes out of faith is not a thinking person offering an opinion but a mindless phonograph playing back nonsensical recording.