Its personal, no speeches
I can`t help to think back when Ben pointed out that, because it was personal - the "speeches" or excessive talking if you like would be the end of him and I guess it sort of was. Had he not pulled back and just shot them right away he might actually have spotted the last one and gotten away with it.
Obviously this wouldn`t fit with how the movie was supposed to end, but something to think about if you already didnt.