I'm not sure about your use of the word "epic". Actually, Morrowind's plot is very epic, in the actual sense of the word. It's like an elaborate Greek drama, with gods and demigods playing a part, and you are not quite sure who the real villain is. Dagoth Ur as the betrayed one is quite an interesting antagonist. Maybe you don't like that you are the tool of a petty revenge and responsible for the destruction of Morrowind. You know, "epic" doesn't need kalpas. This "epic" is subtle, not like Oblivion's bold and stupid. It also makes fun of the concept of "hero".