Here's a question going forward, pertinent to all live-aboard op.s visiting Cocos Island; what, if anything, should they do differently, either in advertising, customer education onboard, the manner in which dives are conducted, where &/or what time dives are done, etc...
I'm assuming they're not chumming/baiting/shark feeding or spear fishing, although the regional presence of tiger sharks is not always seen as a strict contraindication to those things. But I'm assuming they already don't.
I'm guessing there's nothing to be done, but I want to see what others think.
Should they...put a 'shark disclaimer' in the liability waiver so they can say all the customers were warned tiger sharks might kill them? Does that need to appear on advertising/promotional materials? If so, should such disclaimers also specify barracuda, large moray eels, the possibility of oceanic white-tip or mako could wander through, etc...? If someone blunders into a Portuguese man-o-war and dies from stings, and that species wasn't mentioned in the disclaimer, is there a liability concern? I once read there's some sort of unofficial legal rule of thumb that if you're going to write at all, you have to write it all. You can't write up specifically every way nature can get you.
Tiger sharks move around; I doubt avoiding the site this happened is practical. But maybe some sites are more likely to provide tiger shark encounters. For some of us, that's not a bug, it's a feature. Is a boat going to catch flack for taking divers places where tiger encounters are 'more' likely (whatever that means)?
Richard.