No, it is. It's a bias in favor of non-intervention. Ideology or bias isn't a value judgment; it's a philosophical question. It's about your starting point. Some people have a bias in favor of action. If the odds are equally weighted, they will choose to act because they are philosophically inclined to be more satisfied having done something. Other people are the reverse; they are inclined to not act unless the evidence suggests they should.
It's not about one being inherently better than the other; it's just the lens through which we view our decisions.