Easy scenario, I come up with a new ad style that works pretty well (worth loads). Google (et al) say no, that violates some standard we set, blocked. They just cost me a bunch of money.
> Google is in a unique place to tackle the problem of poor advertising by filtering truly bad experiences
By leveraging a leading (at least) position in search, browsers, and advertising.
If they want to drop out completely from their "Coalition for Better Ads", make it a consumer group instead, then maybe I'll trust them on this. Right now this is the type of move that really makes me agree with the author, Alphabet should be broken up.
I also wonder if they are going to punish ads that look like page content (google search) or before youtube videos.
I think you could make the case that the current idea actually makes it pretty much impossible not to screw over new companies in favour of the entrenched group (google, facebook, etc...). If you are going to be restricted to the ads google already does extremely well, why wouldn't you just go with Google?
oh, and we have the issue of Android. The vast majority of mobile users just use the browser already on the phone. That would be chrome, which will have only the ad blocker provided by Google unless they change things.