The question is, are there any sites making legitimate use of this?
If not it is an easy decision, standards or not. If there are, then Chrome's market share dominance will probably end up forcing those sites to change how they work. Basically Google would be exercising the exact same control over the web that everyone (including Google's founders) rightly castigated Microsoft for.
Basically Microsoft doesn't want people using REAL ad blockers, so they figure if they can block the worst malware type spam advertising there will be less incentive for people to block all ads including all the ones Google makes money from!