Atlanta, Fargo, You're the Worst, Bojack Horseman, Rick and Morty, Kimmy Schmidt, Hannibal, Review, Twin Peaks (The Return), Stranger Things, The Good Place, Santa Clarita.... and probably three dozen other ongoing or started-after-2010-but-now-finished shows I'm forgetting right now that are excellent, by the standards of all TV before 2010. Many others are top-5%-of-TV-series-ever material but kinda skippable now because there's just so damn much excellent TV. I've dropped ongoing shows that are merely very very good because I can do that and still have more TV left than I can watch.
Right now is the best TV's been. It's frustratingly good, almost, because I know there are lots of good things I'm not watching simply because there's no time (I do other stuff too, ya know?).
An example, "The Expanse" has interesting characters, but so far it has also been the case that lots of stuff happens in each episode.
It's fine that there are TV shows that are basically crafted for uber-fans who want to carefully watch every episode multiple times but these shows often aren't for the casual viewer. And there's nothing wrong with being a casual viewer.
From the very first episodes, the way they started slowly cycling through each character's backstory, I realised this was going to be a really long drawn-out series that was clearly going to be stretched (and milked) to maximum running length. I'll credit it for it's glossy production look and design. That's one thing that really separates productions today from old: many TV series have the same glossy, high-end look of Hollywood films.
Probably because the talent pool is diluted. There are probably 10X as many serious cable/streaming dramas now than there were 10 years ago.