It's a silly thing to say, because ship losses are largely driven by German submarines in the Atlantic and American submarines in the Pacific, which are about a

It's a silly thing to say, because ship losses are largely driven by German submarines in the Atlantic and American submarines in the Pacific, which are about as disconnected as things get in WW2. You can see clear trends in the data in each of those theatres, both of which turn drastically in the Allies favor later in the war. The main driver for that is American war materiel production, but there's also plenty of decisions in strategy, tactics, and weapons systems that are entirely different.