I would hope that even journalistic objectivity has some limit, to the point that one could call the slaughter of innocent people wrong. That's a value judgment that should be made. If not, then it would seem that they could not complain if their offices were attacked by evil people, because that would be making a "value judgment" on their actions. It seems like some kind of hypocritical cop-out.
Besides that, Reuters is no longer a bastion of objectivity. Their coverage is definitely left-leaning. And since they are a wire agency and their stories are reprinted around the world, it makes their bias even worse, because it seeps into other publications.