Presumably, YouTube at least wants you to think the videos are the main feature and the ads are just a small add-on, so you would expect the article to say "com

Presumably, YouTube at least wants you to think the videos are the main feature and the ads are just a small add-on, so you would expect the article to say "companies are boycotting YouTube because their ads are displayed along side extremist videos." The wording the author quoted makes it sound like the ads are the main featured content.