I missed the dark humor of seasons 1-3, where it always felt like a mix of "that's a whoopsie" and "oh geez" from the very first episode. This is what made Fargo so unique to me. Season 4 felt more like "holy..." – and only after a few episodes.
It was still quite compelling in its own way, had some unexpected twists, and there were some elements of dark humor present. Though the dark humor focused mostly on weird deaths, instead of the typical chain of unfortunate circumstances. At least the unnecessary, yet fun, paranormal stuff wasn't removed.