>" I don't claim to know much about FAA procedure for approving flight of new aircraft, but I think it's safe to assume that whatever testing, regulation, other processes they have in place that allowed for this type of grave error to fly is either insufficient or broken."

That's quite the assumption. I don't even know what 'broken' would mean for a certification process as byzantine as the one used by the FAA. I think you should either be more specific, or take the time to learn a bit about the systems, processes, and failure modes of complex multi-stakeholder processes.