It was probably a situation in which it wasn't a big deal at the time, but later when thinking about it the author decided that his original work should stand as is, and not be edited to become "Politically Correct" for some people. The same "people" that argued about the word usage of Battle Angel Alita have obviously not read the manga, possibly other than a text script, and could not appreciate the situation and characterization that made it so damned intriguing as a series.
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The psychology, martial arts, science, society, politics, and the technology are wonderfully thought out, illustrated, and explained for the laymen, while containing slivers of realism without ruining the fantastical happenings of the Last Order universe. Anyone who seeks to diminish the series does not have a clue as to what they are trying to stifle, and should let the series speak for itself.
Here's hoping James Cameron doesn't futz it up.