There are some other options too like you could flow just individual shapes and then use those to boolean, and also with that method of flowing a bunch of little objects there is a "Rigid" option that you can check which doesn't actually deform the object but instead moves and rotates it into position as if just its center point had been deformed. That could be helpful if you wanted all the pieces to be all really straight cuts that go in one single direction, otherwise the cuts will follow the surface normal more like shell or offset type shapes.

- Michael