The Orville is to much a love letter to TNG to ever truly be a template for modern Trek but that said we have seen good examples to create more positive Trek shows. Lost in Space, Agents of Shield the Kelvinverse and basically the entire MCU. It's not really that hard to take a less cynical approach towards exploring issues if you want. Optimism is a timeless concept. Their is middle ground being dark and edgy and naive or preachy.
Jason
Jason