Assuming that the result you get is reliable (I would not assume that), maybe that is enough. I had one book here where the author frequently repeated herself--sentences that basically said the same thing she'd just said in a previous paragraph. I had to cut all that. One with a lot of useless filler phrases that added nothing. Another where the author wrote whole paragraphs in the form of rhetorical questions. It was much better rephrased as statements. I did a lot of fact-checking on one book. Jargon that can be translated into English. Tables and charts where the data is not well organized. I mean, it goes on and on.