Oh hey! Author of the video here. I also tried NaNoGenMo in 2017 with my "Infinite Fight Scene" [1], a novel that is one long fight, utilizing an earlier version of the same system. I think I remember your entry (I'm a sucker for space opera). I thought it was great!
I tried this once by essentially making a Zork-like text adventure that played itself. The result[2] was horrible.
[1] https://nanogenmo.github.io/ [2] https://github.com/smcameron/nanogenmo-2017