I think I mostly agree? I prefer complex, weighty media, especially TV, and that often coincides with narratives which are dark.

With that said, grimdark, nihilistic, everybody-sucks-and-hope-is-naive type narratives do absolutely nothing for me, and IMO they're not nearly as "cool" or "mature" as their fans think they are. A sense of nuance and an acknowledgement of complex realities is always what I'm most hoping to find in a piece of media.

More middle-aged characters would also be nice, I agree.