That failed miserable

Yup. You gotta let it down sloowwwww

Pop or not, they probably didn't let the chocolate set long enough or heated it too much

A balloon getting smaller wouldnt fling chocolate peices outwards. That shit exploded.

Disinflate? That's creative but it's deflate and yes if the person had made a tiny hole and slowly let the air out it should have worked

You should also coat the balloon in some material to prevent the chocolate from sticking. Powdered sugar or baking powder would suffice.