Good on them. I was hoping that they'd be able to manage a way to unlock this one without potentially breaking the whole model (by exploiting some bug in the pr

Good on them. I was hoping that they'd be able to manage a way to unlock this one without potentially breaking the whole model (by exploiting some bug in the presumably outdated version installed or something that wouldn't positively degrade the security model), but given that that's not the case then I think they're making the right choice.