answer:
because dramatic comedy shows that even in a broken world with imperfect characters, it is still possible to find the joy of living.
explanation:
I belive comedy is a way to express realism. In the romantic age, people would write their characters as perfect versions of humans, having them speak eloquently and with great education. Their lives would be perfect and the story was always very simplistic: protagonist fights evil, wins, and they all live happily ever after. The age of realism, though, is quite the opposite. in this age, people focus not on the "perfect" character or world, but rather the flaws, changing emotions, and relatable problems that the characters suffer from. this caused the audience to have an intamte connection to the characters and the story. However, the comedy part is also in these stories. I believe it shows how, even in a broken world, there is still joy. in the end the protaginist dosn't live a perfect life, but instead learns to see the joy of living; even in the inperfect. hope this helps. some examples you can use for dramatic comedy are shakesphere, Longfello, or even the guy who made "the boy who would be king." the best is the Divine Comedy. or Tolkien. as for romantic styles, try beowulf. also ya i know my grammer sucks i dont have time to fix it XD