From my point of view, this is not enough. I would expect at least the 5-Why Method here. The RC could also have affected other deliveries/products.
I get it. I've been a participant and driver of dozens of '5-Whys.' Worthy efforts all, but they are expensive, intrusive, and often result in no action despite understanding the exact root cause. In the end, everything is a business decision and must be. All manufacturers are in business to make money. Producing excellent gear is also a senior objective, but it can never be number 1. Anyone who says that it is lives in a dream world. I'm not condoning this behavior, just stating the obvious.