The thin rear lights are pretty common these days, thanks to the switch to LED lighting. What is more distinctive, IMHO, is the Red LED unibrow panning across the edge of the boot, and combining the taillights and the center brake light into a single continuous light ribbon. This, combined with the shape of the rear window, to my casual eye, seem pretty distinctive, and would confuse the heck out of me if I were following the Aston Martin.
Maybe this is common enough in cars that it has lost its distinctiveness and HF does not seem to be bothered, or maybe he is waiting for the design patents to issue before taking it up with AM. Either way, it’s up to him to do something, or not.