That's a bit extreme. Google sends out emails every few months about new policy that may get checks. They definitely aren't very good at doing automatic checks that are relevant or have much relationship with the policies they publish.. But that is a bit different than strategically attacking specific apps beyond choosing the X thousand most popular apps to get the most users affected per presumed threat.

(I get various compliance spam and ignore it and among things with small numbers of users and/or owners who lost interest a small percentage a year fall out of the stores. The only differences are that we don't care enough to forward the threats Google sends us and no one would bother to amplify them.)