It is important to have both, action is aesthetics, but it needs more than aesthetics to turn out good. Storyline is good as well, yet it would still lack the action to grab attention at times. So that is why, there must be a combination, with different ratios, to see what is good, not only to be enjoyable, but to satisfy anything or anyone would say to make it "better", when they don't know or understand why it can't just be one to work as well to peoples' ever changing expectations.