You misunderstood the OP. Naval combat isn't unimportant. It's less interesting than land combat because there's less diversity among naval units and no diversity among naval "terrain."
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Hmmm, in my haste (necessary when posting on message-boards at work) I may have misinterpreted the OP's message. In any case, I do find it "interesting" to have double attack, +1 range naval ships moving in, bombarding and then moving out of range again