The most important part of this video (the bump-key one) is the bit about how "the bad guys have known this trick for years." It's absolutely true. The tricks only work because the good guys don't know that they're vulnerable to them; there's a noble tradition of publishing vulnerabilities in computer systems, and it's nice to see that the same spirit is alive in other secure arts as well. Now that you know, you can start working on a lock that isn't susceptible to these tricks.
I have to admit your reasoning is sound and i am better educated for the viedo..So will have to agree..
Ignorance was bliss though..