If you’re an SLS supporter, that is. Spaceref has a NASA document from November that concludes utilizing orbital assembly and fueling for exploration missions adds no significant mission risk. Opponents of this concept have been sowing FUD (fear, uncertainty and doubt) about this ever since it became viewed as a threat to first Ares, and now SLS. It was always a monumentally ignorant argument, that could be made only by someone unfamiliar with basic statistics and space ops (and sadly, it was once even made by the administrator himself), but now NASA has an internal document that shows what nonsense it is (and really, always was). Of course, in defense of Bolden, he knew what his audience wanted to hear.