The types of TV series that are not episodic seem to always devolve in this way towards worse quality and inter-character romantic relationships, not to mention having cliff hangers at the end of every episode. It's a tension and resolve tactic that gets pretty annoying.

Bojack Horseman is pretty good indeed, but mostly because it's a comedy. The drama isn't very interesting.

I've heard that a character dies in every Game of Thrones episode, which means some characters will lack depth since they won't have the time required to develop it.