Why would Poppy create a zone that explodes. . .??!
I think it's clever to have her swing her hammer with such force, that it breaks up the earth, making terrain that's difficult to traverse; that's neat! But it shouldn't explode!
The earth does not just explode randomly, no matter how hard you hit it with a hammer! That's not a thing that happens!!!
Everytime I see it, I think "wait, is Graves here?" Because the explosion looks like it's his attack. It just feels like an attack Poppy should not have, and frankly Poppy seems to be powerful enough that she doesn't need to have an extra nonsensical explosion.