"In one possible application Google is considering, it may choose to block all advertising that appears on sites with offending ads, instead of the individual offending ads themselves. In other words, site owners may be required to ensure all of their ads meet the standards, or could see all advertising across their sites blocked in Chrome." I like this approach. It punishes site owners for running malicious or badly…
One of the problem is the definition of "intrusive and dangerous" varies wildly from person to person. Ad blockers have generally handled this by blocking everything while giving the ability to whitelist exceptions. I imagine it would be much more difficult to get good user satisfaction by attacking this from the opposite approach.