I'd guess it's due to the fact the culprit is a 67 year old woman, and her fraud resulted in increased maintenance costs and not the loss of any subs or sailors. For better or worse the end result has always played a huge role in how these types of situations play out.

On top of that, it seems incredible to me that something so important could/would have such a single point of failure and that there was no redundancy or other safeguards.

I can see why somebody might decide keeping the number lower is better for everybody directly involved.