I dunno why this show ever stopped. The whole point of an anthology series is you get to start over each time. So even if Season 2 wasn’t so good — though it actually was quite good — everyone should’ve been able to move on to something else.
People didn’t like how the second season abandoned the beloved first’s mad mysticism. And the story was far more sprawling with 4 leads instead of just 2. But even with some poor pacing and weak subplots, season 2 was still better than most cop shows.