Hey, I'm really happy you enjoyed the game!
The way that the Beasties target your character is that they'll get your position, add your speed as a predictive measure and then add a randomness factor. This last part can make the Beastie miss on their own at pretty much any difficulty, but can catch you off guard if you don't react correctly. This isn't the Beastie missing on purpose however, it's just that they made a mistake!
I am not currently happy with how the in-game dialogue works, since it's very simple (there's only lines for missing, hitting and reaching a higher difficulty) and Beasties don't have that many lines. So I might be able to implement some of your ideas, especially if it's noticeable that you're just trying to get stomped. But it's something I'd have to think about!