On the point about the difference between "conservative news" and "liberal news", I agree that it's unfortunate the two even exist. But for the sake of the Gizmodo article, I think it was important for them to call this out, because not only was "conservative news" being censored, but "liberal news" was being introduced or boosted.

Curators would find less biased (read: not as sympathetic to the conservative viewpoint) sources for trending conservative topics, but they would not do the same for liberal topics. So I agree that it's best to find balanced journalism, but that should happen on both sides (conservative and liberal). If they only find less biased sources for conservative media, then that is in itself even more biased toward the liberal agenda. They were censoring or watering down the conservative view point from multiple angles.