That made me very happy (and slightly relieved—your’s is the first game I’ve heard about that I wasn’t directly involved in!) to read and really like what you did with the Jamboard.
The difficulty (I think rightfully) tends to ramp up with fewer players but just like with your group, they can always bail if they’re concerned for their safety & it sounds like you ran reveries exactly as intended.
Thanks for the write up! Have added a community copy :)