RollJam and RollBack are the exploits for bypassing rolling codes. These exploits are possible because you can replay captured codes at a later time.
What's happening in most cases is the proximity-based fobs are simply amplified with a device to reach the person's car in the driveway, since most people keep their keys by the door, and in some cases even within reach of the car without a device. It's this low hanging fruit where the theft happens, or just a tow truck...
The Flipper is more of an enthusiast and pranking device. The devices used in actual thefts are like disposable $50 alibaba pieces of shit. Canada is effectively creating a clandestine market for simple radio amplifiers made from the most basic electronic components. As someone in Canada who used to build the classic cmoy Altoid-tin headphone amps to sell on etsy, this is tempting...