There’s a sense in which this is true, and a sense in which it is impossible. No matter what, you write on some topics and not others. You include some facts and figures, in some order, and not others. You interview some sources and use some quotes, and not others. You can increase or decrease bias, but you can’t eliminate editorial content in anything more complicated than (some parts of) the weather forecast.
My go-to thought experiment for this idea sums it up pretty well in the first four lines, showing that facts and truth are always at least somewhat relative to who is asking and why. In that regard, the postmodernists were just plain right, even if almost everyone that followed misunderstood them.
