[yuriks]

What people mean when they say that is that someone's opinion on evidence-based policies shouldn't be intertwined with their allegiance to a particular party. The entire point of politics is determining policy, and policy has an effect on the outcomes the doctors that wrote the article want to improve.

[fullshark]

In any case authors are clearly making a political argument and implying if not explicitly making a causation argument here, not merely describing the state of the world.

[fzeroracer]

The state of the world is the result of politics. You can't talk about one without talking about the other. Like the Texas energy grid being a disaster is the result of conservative deregulation and privatization. Merely describing the state means you're simply describing the effect and not the cause.