'Just culture is not what you describe, & not limited to NATS. What you describe is a "no blame" culture, which has been out of favour for decades, for the reasons you suggest. A just culture draws a distinction between honest mistakes & errors, which occur in any environment, & non conformance. The second is definitely not acceptable nor accepted.'
Agreed. So if you build a safety critical system that won't 'fail over' successfully, that's ok, according to 'just culture' - because NATS is saying they've 'conformed'?