gzt: High hazard system no redundancy killed people.
I'm not sure I'd call it a high hazard system, however no matter what level of hazard you assign to it, the system on its own didn't cause the crash. It was one of several factors. The last line of defence (the flight crew) should have prevented this accident. The fact they weren't able to, especially in the Ethiopian crash, is very concerning.There has to be some focus on this.
Right now the two airlines involved are keen to deflect any cupability away from themselves or the (in)actions of their crew.