I didn't have a chance to test what Google thought of this structured data because I had to remove it due to the fact that the structured data is visible to the user.
For example, my site background is black and after using this plugin there was a big white box on my site with all the structured data.
A good structured data plugin will just add the rich snippets directly to the WP elements so they're visible to the search engines but not to the end user.
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