The fingerings in the example in the readme are completely non-intuitive for me. I've played piano for a few years and never encountered such fingering. My guess is that the algorithm is optimizing for the wrong metric.
I hope the internet won't become flooded with sheet music that has bad auto-generated fingering, because it's something that you really trust. If I encounter some strange fingering I trust that the composer knew something that I don't that I maybe should work hard to apply to my own technique, obviously this will damage your technique if it's nonsensical.
It seems all the more illogical as very similar patterns occur in bar 2, 6, and 10, and the thumb is used every time there.
(Not a pianist myself)