Might do well for extension developers who haven't seen this yet, MV3 to start thinking about it.
A while back, mostly for the devs making add blockers, there was a report of Google and others doing what they could to make the ad blockers useless.
It seems to me, usually off base on technical stuff, this is the wolf in sheeps clothing. Making a backdoor method of canceling out add blockers immediate controls under the guise of an "Improvement:.
This is how I read it.