She also has a skill, that unlike all other skills, has a runed effect that is called a "missile".
Skills in question are here: http://us.battle.net/d3/en/calculator/demon-hunter#Q!g!c
I imagine it's a typo, as rocket and missile are, to most, synonyms, but they are in fact different words and meanings, and IF the passive does indeed influence that particular runed skill, I think it would be wise to rename the missiles to rockets, if for no other reason then clarity and consistency.
Unless, for some reason this is intentional and Blizzard does not want that passive to influence that skill with that rune. Though I find that unlikely.