When I look at w3facility.org, it seems like Googles algorithms do not properly handle the case when a scrape-site provides a source-link to the original conten

When I look at w3facility.org, it seems like Googles algorithms do not properly handle the case when a scrape-site provides a source-link to the original content. Google recommends the latter to protect against duplicate content penalties when you use some external content to enrich your site (for example a short section from Wikipedia, imdb actor info, etc).