There is a fundamental difference between broad socio political points that are innate to the human experience over generations (I.E evil authoritarians and conflict between two kingdoms/countries over broad differences in belief) and purposefully shoe horning in contemporary political issues that wont age well.
To illustrate this, it would be really out of place if all of a sudden there was an event in game specifically about police brutality (guard brutality?) against darker skinned Hyurs and that the NPCs start talking about Guard Reform and racial justice for Darker skinned Hyurs.
It would be out of place and context for the universe and it's already established lore. It would be tacky and distasteful. If you want to incorporate contemporary politics into a piece of media, you dont brute force it. You carefully weave it via allegory so that it fits within an exisiting narrative without being so brazenly in your face. Furthermore, most times when politics are incorporated into moral tales, they tend to be broad ones that are universal. I.E - Being an authoritarian jerkwad who oppresses people cause theyre different is kind of universal nono. Again, to illustrate an example of what wouldnt work is if you all of a sudden had a 1:1 analog for, I dunno, US Conservatives where theyre portrayed evilly and outlandishly and the good and pure US Progressive fights to stop their evil. That kind of shoe horning becomes propaganda, because it is designed to sell one viewpoint without nuance or tact. This doesnt mean that the other viewpoint is correct, but that to blatently take a black and white view point that specifically props up one contemporary political side or agenda isnt typically welcome.
Thats what people mean by keep your politics out of games. They dont want to have debates over nuanced specific contemporary politics in a piece of fantasy escapism because we get enough of that in real life as it were, not everything needs to be about contemporary politics, and I would say 90% of hte time when it's done in media its a ham fisted one sided propagandist mess that fails to actually fairly or truthfully address issues. This is double so when the media just slaps you in teh face with it bluntly and disparages you overtly for having a viewpoint that may not be universal or has nuance.