No, the primary purpose of the lock is to convince the owner that the bike won't be stolen. The secondary purpose is to deter the thief. As for actually preventing the theft, see the primary purpose.
Here's what you do. Go back to Harbor Freight. Buy an angle grinder. Make a video showing how long it takes to cut the lock. Sell a product placement ad in the video and post it. Use the proceeds to buy a back-up bike.