This is not a general purpose tool. It is particularly specialized and only useful for people using the DITA Open Toolkit to generate web content.
Other developers might be interested because it does import static XHTML files and pick apart the content, extracting info, removing unwanted parts, and change others, as well as importing the body of the page into WordPress.
Take a look if you are interested on the plugin page (yes, I know an importer is not a plugin). Please leave feedback in the comments on that page.