Thanks for the time spent on it and your detailed feedback!
Sure, we need a restart button (or rewind, à la Into the breach). I was frustrated as well during playtest as well but we had to upload the game as is, there was no time left. (we uploaded the game 3 minutes before the end because we had a breaking bug)
We'll fine tune all those aspects after the jam. We'd like to see our game as we envisioned it (if we had more time :p).