Agree that partisan does not correlate to honesty.
I think the claim, and I agree with it, is that partisanship will affect where you look, how you look, and what you do with contradictory information.
Are you suggesting disagreement with 'the biblical narrative' indicates partisanship, or the lack of? (Or, rather, referring back to original wording - an indication of shoring up a worldview?)
Everyone has biases, but that doesn't mean we're all incapable of feeling or finding truth.
The GP said clearly that the field is broken due to everyone preferring to shore up their worldviews rather than follow the evidence.
People disagreeing with the Biblical narrative sounds like the opposite to me.