Why the King George V class kept its bow

Why were the King George V-class battleships not given Atlantic bows, especially while the later ships were still on the stocks?

Their existing bow was considered adequate, while a late redesign would cost weight and construction time.

The King George V class was wet forward in some conditions, but the bow was adequate for the speeds and operations the Admiralty expected. Retrofitting a more pronounced Atlantic form while ships were already building would change structure, weight, and construction schedules. The later Lion design points toward the direction British designers might have preferred with more freedom. The retained bow was a wartime production compromise rather than proof that the existing form was ideal.