I don't want my models to be "centrists" and bothside everything for the sake of it. I want them to provide the facts and tell me which side is right on the issue.
I guess centrist is a placeholder for "I don't want you to pick a side, I want facts, not BS" I'll go further, I don't care which side is right, I want to know what claims are factually accurate, and what claims are omitted from the issue / news / conversation.
Until it disagrees with you.
The kinds of questions they asked don't really have right or wrong answers. They didn't ask the culture war questions that comes up now in politics.
Factuality is orthogonal to political leaning generally. People can use the same set of facts and come to very different conclusions. That’s a separate issue from “are these facts correct” and what happens when an individual or entire party starts getting most of their news from highly partisan and unreliable sources.