Blaming the victim is just about always bad form. The hammock was not the cause of the accident/injury. As RR said she could have been sitting on a pad - or in the stone belay seat that has been there for many years. Neither was the cause of the accident carelessness by the climbers (yeah I do have a vested interest in saying that) - no knocking off of obvious loose stuff by ropes, hands or feet. The rock that broke was seemingly solidly attached (obviously not so much...). You could claim that the climbers should have been more careful and tested the holds. You can claim that people should not casually hang out at the base. It's easy to monday morning quarterback. The reality is that people will be in the wrong place at the wrong time occassionally. Always have and always will. It's called an "accident".