thank you for this honest feedback!
to begin with, I agree, I vastly oversized the hitboxes.
Regarding magnetism, I was inspired by this gameplay, that's why I pushed it like this, even if it doesn't have a literal application of it.
compared to the attack mechanics, I find that the delay allows the player to position himself correctly, because he does not "undergo" the timing of the explosion, because it can be frustrating if you attract too many balls at a place where there are not enough enemies.
I'm glad to know that with a few tweaks, you might like this game a lot!