The fact that the story doesn't seem to be going anywhere troubles me. For all its faults, Voyager had a clear, fundamental purpose, and so did Enterprise, though to a lesser extent...
Why is this necessary?
Has every TV show in history "gone somewhere"? I presume you're referring to a story arc. Those are a fairly recent development in prime time TV drama. Not that I have anything against arcs, but TV dramas did just fine as episodic adventure-of-the-week shows for decades.