Face detection on the example images immediately focused on the right part and after that recognition becomes much easier when you crop out the rest. Not convinced. It’s a cool gimmick though. I like the MARPATish look of the black and white one.

The most effective socially acceptable mechanism is a burqa or COVID mask or motorcycle helmet sock.

As Phil Zimmerman might opine, it’s not so much about defying every attack, it’s moreso about making it more difficult en masse by increasing the unit cost. Though perhaps in the 90s surveillance tech wasn’t quite scaling as quickly as it is now.