I guess, at the end of the day, I just don’t see what the problem is with admitting that the dm is never really impartial. To me it’s far more important to realize that no I’m never really impartial and recognize that.
From there I can see how my biases are impacting play and try to ameliorate those biases.
A living world, to me, cannot be even remotely impartial because all of those events have a single source. And that source will have biases.
@Bedrockgames above mentioned he would never use zombie hordes. That’s a bias. Others have mentioned various options they would or would not do. These are all biases.
And that’s perfectly fine. It’s totally understandable. But to then pretend that these aren’t biases, by trying to hide behind claims of “realism” or whatnot that are anything but, are not helpful.
I see it more that a certain subset of gamers has staked out certain terms as good and definitional to their play styles and then fiddle with the definitions to support that.