This ship is 152 m long, 21.2 m wide, and displaces 7350 tonnes
The WW2 Omaha-class light cruiser was 169 m long, 16.85 m wide, and displaced 7050 tonnes
The WW2 Pensacola-class Heavy Cruiser was 9242 tonnes. Considering how much of that displacement came from armor plate, this new ship should really be considered at least a light cruiser, and closer to a heavy cruiser
But I can see the Navy's point in calling it a destroyer rather than a cruiser. Cruisers were small battleships, mounting large numbers of heavy guns (just not as big as battleship guns). Destroyers generally only had a single mid-size gun, like this modern-day ship
good point