Beatable, but it's not easy at all. It is giga-RNG, always need good roll timings (correct stat at the correct time AND a higher, not lower value), but also need to know how to keep your stats (when to aggro and kill enemies just as they spawn and when to try to stay out of range, run away into corners and pray for a helping roll). I tried to go for that desperate-gambler 'let the next roll be good'
TLDR: skill issue technically beatable if you play it like a desperate 'let the next roll be good' gambler and retry over and over again. Thanks for playing and good luck in the jam!