It doesn't call out advertisers directly but it does call out the Minority Report style ad serving.

IANAL but sec. A: defines FRT as "comparing the facial features of a probe image with the features of images contained in an image repository (one-to-many search)."

"Private Entity shall not use Face Recognition Technologies in Places of Public Accommodation"

"John Anderton, you could use a Guinness right now!" style targeted advertising requires matching features of the face (eyes) to a repository to get the name.

https://youtu.be/uiDMlFycNrw

Right, but if that was part of a social media app (say a hypothetical "Instagram display advertising" product) then it is explicitly included in the language: "Exceptions. The prohibition in this Chapter does not apply to use of Face Recognition Technologies:... In automatic face detection services in social media applications."

While I understand the difference between detection and recognition I think an exception naming both recognition and detection is likely to be viewed by a court as permissive.

Otherwise what does that exception mean? I'm not aware of any detection functionality in any social media application that isn't tied to recognition.