Maybe because the Flesch-Kincaid reading level isn't a particularly good metric of anything other than sentence length and syllable count? Certainly not of "content" or "value" however you might define those concepts.
Tell that to the author maybe? The author implemented the Flesch-Kincaid grade level algorithm in his plugin.
In other words, I'm not suggesting that he use Flesch-Kincaid; he already made that choice. I'm suggesting a way for him to not re-implement an algorithm that's already implemented in his language of choice.
In other words, I'm not suggesting that he use Flesch-Kincaid; he already made that choice. I'm suggesting a way for him to not re-implement an algorithm that's already implemented in his language of choice.