Guy who made the video here.
The lock mechanism itself isn't one of the easiest, but also not one of the hardest to pick skill-wise. However, it does take a very long time to pick through which means that the lock is doing its job very well. Also, I have read that this lock is very resistant to destructive attack as well. So combining pick resistance with physical resistance, you have a very good lock as long as it's installed on a good door and the building has all other security measures in place (no ground level unprotected windows, etc)
Also worth noting, Bosnian Bill (a more recognized name) also attempted this lock here https://www.youtube.com/watch?v=tLeiPmfm-2s