The AIC is due out tomorrow according to the people who are posting on Flyer.
I don't think enforced or encouraged Listening Squawks will end infringments. My thoughts are that infringements are caused by navigation errors, plain mistakes in planning or by people simply not checking the NOTAMs. If you are showing your registration on the radar display (as you will using Mode S), then a Listening Squawk is a good idea if someone is watching and can call you up by registration to turn away. That doesn't address the problem of people not reading the Notams and busting the Red Arrows display.
Anyway, I am waiting to read the AIC and see what it says as I think this is the beginning of a trend.