President Sea Urchin was so impressed with the new Dinomark AM on his trip to Jeloka to meet Emperor MBH he apparently called an special meeting of NS Engineering and asked why NS doesn't have a ship like that! He thinks a cruiser or large destroyer sized ship that is just as capable and comfortable in atmospheres would be highly useful for NS operations.
Ships like the Isometric do have limited atmospheric capabilities. They can make emergency landing and operate fairly well in high atmosphere levels however in thicker air at lower altitudes are rather clumsy plus their nuclear engines are not exactly good for the environment.