I'm surprised this doesn't use the lishi tools

It's not picking, it's brute forcing every combination. Lishi and other lockpicks require tension and feedback, often one pin at a time, which is the opposite of what this tool is doing.

Right. The next step up is a robot that uses a Lishi tool and force feedback. Then one that just uses a single pin pick and a tensioning tool. This is a neat machine learning problem.

This would potentially protect against other process reading memory via some system compromise - they would be able to get new secrets but not old ones.

As a native speaker of both, "he didn't miss" is my adaptation.