The article is wrong on a few things : "It’s not difficult to measure engagement." => with video ads it's doable but it's always approximations when it comes t

The article is wrong on a few things : "It’s not difficult to measure engagement." => with video ads it's doable but it's always approximations when it comes to ad viewability (and for example, even if I can see an ad, it does not mean I'm watching it) "Online advertising has a history of opaque reporting" => compare this to TV or radio It's clearly an article against Facebook Ads, even if they are miscalculating things, it seems too biased to be taken seriously.