This isn’t a “naval game”. It’s a strategy game. Navies play one role.
That they do, but they are meant to be part of a larger whole.
Land Combat is still a major focus of the game, but there's nothing wrong with improving the naval aspects. Spamming one unit is boring, and we'd like the game to be a blending of both land and water requirements, which was the intention when Battleships were first added to the game.
That's why Pangea was added alongside a new Continents. We're trying to give you reasons to do one, the other, or both, as they all have their uses.