Foundation Question

We have a detached garage that was built in the early 90s on a slight hill with a block and fill type of foundation. My husband lifts weights and dropped the barbell and cracked the slab under the weight. Over time this crack has gotten worse and the blocks have started to shift creating more of a problem. We did have it looked at by a contractor and learned that the slab was not poured very thick and the blocks were not filled with concrete or rebar which made it more susceptible to damaage.
Could this possibly be covered by homeowners insurance since this was an accident and not related to weather?