True Regret

I was watching the 1969 True Grit on TV with the CC on, as is my wont.  And there was John Wayne and Kim Darby having a discussion about "coon hunting."

However, instead of writing out the word "coon," the CC typist had it as "XXXX" every time it appeared.

I assume someone felt it was an offensive racial epithet.  That it is, but not in context, where the characters are discussing the hunting of a raccoon.

In any case, why do readers of the movie need to be protected while the much larger crowd of listeners can apparently handle it?