Author here. Sounds like you and I agree that algo-generated recommendations of content are different from actual content itself. But the point of the article (and title) is that the plaintiffs in this case argue that each time YT generates recommendations, they're making new content that YT can be liable for.
I'm mostly just recapping what was said by each side at oral argument and the potential dramatic consequences if SCOTUS finds fully for Gonzalez -- not sure I follow where you're seeing bias.