The point of the lock is to make the device less valuable for resale. And this, because it doesn't remove the lock, doesn't invalidate that.
The device simply flashes the main screen for a moment and then goes right back to the activation required screen.
Kudos to the guy for finding this. But he didn't bypass the system, the device is still unactivated and from what we see here can't even be used for anything. It certainly can't be resold for anything other than parts.