Earlier quoted context omitted.
Related: https://en.wikipedia.org/wiki/The_Death_of_the_Author
Which fails as it assumes text must have inherent meaning. But, it lets people avoid criticism making it a popular standpoint.
It doesn't assume that. It doesn't matter whether the text does or does not have inherent meaning. The essay's point is that the reader's judgement is just as valid as the writer's.
As an extreme example, the phrase "colorless green ideas sleep furiously"[1] can be interpreted by the reader as having meaning even though Noam Chomsky says it's a meaningless sentence. The author is not the final and not the only interpretation that's valid.
[1] https://en.wikipedia.org/wiki/Colorless_green_ideas_sleep_fu...