Officer predesignation is a big deal and requires routing up to fairly high levels. Boards (POCR, redesignation, and promotion) don't meet and drop the results that afternoon. Their selections then get vetted and approved by multiple individuals up the CoC. Since POCR includes redesignations, I'm guessing it hits the big Navy N1 level, maybe even secretariat for final approval. Plus, there was a holiday weekend between the board and now.