This is a very poor example of a supposed misquote by the WTS [THE WTS HOWEVER DOES MISQUOTE REFERENCE MATERIAL] and wouldn't convince anyone who has a 3rd Grade [IN AN ADVANCED CLASS] understanding of punctuation. I cannot see the original quote[IT WOULDN'T MATTER ANYWAY] as the format is too small , but the use of square brackets within a quotation is the recognized literary method to add an editorial interjection that may or may not agree or harmonise with the views of the original writer.
Lady Libery is incorrect to describe this in any way as a misquote [BUT LADY LIBERTY DOES HAVE AN EXCELLENT POINT OF THIS BEING DELIBERATE DECEPTION ]- she is demonstrating a lack of understanding of basic grammar[BUT AN EXCELENT UNDERSTANDING OF WTS B.S.] The Insight book editor has accurately punctuated the quotation. [The Insight book editor wears womens underwear]