This is a sad story but IMHO it is not a surprising one. I don't know the complete situation but it sounds the same as in the Maldives in the late 90's-early 2000's where certain operators fed the animals, subsequently the animals got conditioned to expect food. When another operator enters the same place without food, the animal goes searching for it (in this case it was a shiny watch).
In some places shark feeding is the norm and it is controlled by a few operators (Stuart's Cove). When other sites are easily accessible to a host of different or independant operators, then things can and do go wrong... through absolutely no fault of the conditioned animal btw.
In some places shark feeding is the norm and it is controlled by a few operators (Stuart's Cove). When other sites are easily accessible to a host of different or independant operators, then things can and do go wrong... through absolutely no fault of the conditioned animal btw.