Thanks for playing! I think adding punishment for missing notes makes it more satisfying/impressive to play for advanced users, because hearing uninterrupted music becomes a reward, (geometry dash, the impossible game etc) but it makes it way less fun for casual players, because they'll be failing constantly at first, and it turns it into a rage game.
I've played unforgiving rhythm games with punishments, and it honestly made me stop playing them. I prefer the games that only damage your score, like just dance and tap tap revenge, so you can enjoy the music/ full experience on your first run. So I wouldn't be adding something like this, but I do appreciate the suggestion :)
Was there anything else you felt was missing?