1 ) If UX writer is aware of the vision of the organization, he can express it in the best way in his writing which will lessen the task of the organization in marketing.
2 ) You only get one chance to create the right impression and you have to be purposeful at what you write. So by having a clear vision, this problem is solved.
3 ) A good copywriter understands all this and creates content that provides the right information along with the benefits of your service/product. They know how to create the necessary tone and encourage users to take necessary action.
4 ) If the content is to the point on the website, expressing the companies vision than it is easy for users to get the information there only without searching for it here and there.