It's an add, not part of the article.
- No, the element is unique to this site and is closer to a "details" or "related" tag then an Ad.
Its neither aggressive or existent on more then one article. The only argument that would support your statement is that in the source page its behind the "Next" and "Previous" button.
But I would categorize this as not critical.
- Type of issue
- Rudimentary content not removed
- Feb 19, 2019