In August, 2013, I was struck by a boat after ascending from a drift dive in a zero visibility thunderstorm in Delray, Florida. That was a very rare occurrence. Though, perhaps a little more wary, I do not worry about being struck again and rarely think about it
I dived off Cocos in March of this year and don't think I thought once of being attacked by a shark, including a short Tiger Shark encounter at Manuelita. To be honest, I think I would be a little nervous if I were diving in Cocos today. Sometimes it's difficult to balance the emotional and intellectual response to a situation. I believe that may be one reason people react the way they do to shark attacks, they are quite rare but very frightening.
Many, if not most, of the threads in A&I include a discussion of how or why the accident occurred and what could possibly be done differently to prevent a similar accident in the future. The activity of feeding sharks and/or hunting has been frequently discussed, those will not be a factors in this instance. In fact, it is probably very unlikely that any change in behavior will be identified, that's also pretty frightening.
I am going to Galapagos this April/May