it's an anachronism to use such language in-universe - just like saying "are you ok?" in a movie set in the early 18th century, when "ok" wasn't invented till the late 19th century. Out of universe, we can use it, but that leads to sloppy thinking and putting such language into the character's mouths. Sure, that can be retconned, but it's better to show that terminology evolves over time. It adds versimilitude if it changes over the decades.