When I first heard about the Pico-8, I figured it would be simple releases, not really games, and for the most part it was. Then as developers and fans got comfortable with the platform, things improved a lot. Freezing Knights is one of those amazing titles I would have never figured would be developed for the Pico-8.
Going through your content to check out your other reviews and posts about the Pico-8, I am hoping you saw the Metroidvania games - some of those are absolutely mind boggling to have been made for this platform.