Tl;dr: I was expecting something closer to The Good Place, but instead that got side lined by some huge MCU style plot no one asked for.
What is it with media blowing their load early these days? There's no preventing them from slowly becoming some huge MCU style plot no one asked for slowly over time naturally. The X Files is a great example of evolving from Monster-of-the-Week to an overarching big story. Adventure Time had a big overarching story, but it took time for that story to warm up... like a lot of time. In the meantime there were a bunch of standalone stories.
Anyway, really good and unique take that I haven't seen a lot but rings true. It absolutely feels like a bait-and-switch from the original proposition, which was definitely more slice-of-life-of-freaks-seeking-redemption.