Except, it specifically states creatures, and guess what? Human rogues are creatures. As for the superscript B, how does that have anything to do with it? That doesn't define Bonus Feat, it just helps DMs identify it when they read up a monster stat block so the players don't go "Hey, that monster has too many feats." I can just mark it with superscript B on my sheet if I really wanted to.
More on that.