For what it's worth, I'm not convinced that my approach will actually let more "bad" people through. My personal opinion is that you will improve both your rate

For what it's worth, I'm not convinced that my approach will actually let more "bad" people through. My personal opinion is that you will improve both your rate of good candidate hiring and lower your rate of good candidate rejection. I believe that the existing system intends to optimize heavily for "reject bad candidates" and actually fails at that too. Give candidates a take home, then review it with them. I have a lot of reasons for believing this approach would be far superior to the "sit in a room and get interrogated for 7 hours" approach.