duplicate title not duplicate content

If I missed something please let me know.

This plugin seems to search for duplicate titles and NOT duplicate content.
I just took over a site where I manually found 5 pages (10 pages) with almost identical duplicate content and images.

In some cases the title was one word different, a new sentence added, a word or two added to a sentence, on word added to the page and/or a slider instead of a static header image.