If it’s not in the film, it isn’t “known” to the audience.
Sorry to say, but the audience knew the word “Ewok”
The obscure novelization giving info on how the Emperor gained power & the massive advertising juggernaut plastering EWOK on everything are very different situations.
I agree; I was just pointing out that the principle he espoused is definitely false as a general principle.
No, it is not false as a general principle. There may be occasional exceptions, but “Ewok” is not one of them:
Yeah, people had to go out of their way to read the novelization to find whatever obscure junk lies within. “Ewok” was everywhere, especially considering how strong the toy line was.
Not to mention the closing credits. 😉
As SilverWook mentions, “Ewok” appears in the film. Things that do not appear in the film or are not implied in the film are not known to the audience in general circumstances.