I find damaging fractures way too punishing being just a step up from minor fractures. And having destructive fractures feels almost irrelevant. Most of the time losing just 2 tiers per affix would already render an item completely useless.
I would like to suggest destructive fracture be what is the current damaging fracture and for damaging fracture to be revised to a lower penalty, e.g. reduce by 1 - 2 tier per affix.