How postwar Minotaur-class cruisers would transform the 1940 naval war

What if Royal Navy light cruisers became postwar Minotaur-class designs after the fall of France?

They would dominate contemporary cruisers and aircraft, greatly strengthen operations such as Dunkirk, and force submarines or battleships to become the principal threats against them.

The hypothetical cruiser could deny its surrounding airspace to period aircraft, engage enemy cruisers with rapid and accurate 6-inch fire, and coordinate escorts with much better sensors. Its size would still make it a poor close-in submarine hunter, so destroyers would prosecute contacts while the cruiser supplied detection, command, and air defence. At Dunkirk such ships could protect the evacuation and bombard nearby German formations with an extraordinary volume of fire. The panel also notes the second-order effect: aircraft crews lost attacking these ships in 1940 would not survive to train later wartime units.