Does it matter? At this stage it's just ridiculous that there's no more uproar towards Boeing or even direct intervention into it. Maybe because it's one of the 2 disfuntional members of the duopoly at the foundation of global air transit with massive geopolitical consequences if major changes are suggested.
Definitely both. You never really want to stop understanding, but understanding in public interest cases serves to inform advocacy, and any story can cross the evidence threshold where advocacy becomes the primary concern. I think we're there with Boeing.