I disagree. Unique means one of a kind. However, being one of a kind can come with degrees of how different it is from other things. Every single cheerio is unique. But I would not call them very unique, because each cheerio is substantially similar to every other one. They are not unique in a way that matters to us or that is strikingly differen from other Cheerios, or even from other brands of donut-shaped tasteless cereal. However the Harvey’s bomb, is much more different from other bombs than Cheerios are from each other, so far as I know from the articles posted.
I think you can definitely apply qualifiers to levels of uniqueness.
