Nah, depending on the context of the clip, multiple takes might be used. Remember, they’re not just delivering lines like a movie, they are also delivering sound bites and lines to be used in gameplay in various circumstances. Like if the character is attacked or the game feels the player needs an objective reminder, they might have various lines or soundbites, some of which are the same line or noise, delivered slightly (or very) differently. Delivery differences, as well as line differences, can help avoid the Navi effect, which tends to be immersion breaking and, frankly, annoying.