Why aren't ads a data point in the infographic? Ads are a necessary component of the web atm. They typically insert a delay between the user's action (clicking

Why aren't ads a data point in the infographic? Ads are a necessary component of the web atm. They typically insert a delay between the user's action (clicking a button, scanning paragraphs of text with one's eyes) and the desired behavior (watching a video, comprehending which text is the article vs. advertising pictures and/or text). So a Youtube app running on Fuschia could become a poster child for "anti slow software" based on the author's guidelines. Yet this would only deliver the user more quickly to the problem of ad latency-- a problem which is orders of magnitude worse UX than the problems listed in the article. It seems like inside baseball to make ad latency an externality to the core problems of slow software.