The word "unique" has a unique ability to annoy, perhaps because it is used so frequently and often inappropriately.
How, for example, do those with “unique expertise,” gain such expertise? It would have to be self-taught to be unique. Luke Skywalker's expertise, as one example, was not unique, because he was taught by Yoda.
Even if something is “unique,” it doesn’t necessarily make it special. Each snowflake is unique. So what? Explaining what makes something unique is much more iimportant and more nteresting than calling something unique.
Of course, doing so would be a unique approach.