Who knows for sure, but my bet is on quality checks since Ford has a major black eye when it comes to that area as mentioned in the linked article below. Better to resolve an issue upstream than have a recall.
Ford CEO Farley Regrets Not Tackling Quality Issues Sooner (fordauthority.com)
I love to see charts like the above but I do question the general accuracy since the numbers for the RR are all wrong. I know, the associated article is all about how great the Rivian's numbers are compared to the rest, so I guess the point has been made. I only validated the RR numbers, but...