Upon reading the article I saw some positive impact on this and I say it's not that bad besides those sharks we're not harm at all. But hoping this wouldn't lead to negative things like exploitation of those sharks since many would know now where they are.
"Others saw additional benefits to such a team-up. It could lead to an especially positive outcome if MyBookie “offered donations to shark researchers”, who work in a field that is often in need of more financial support, says Jasmin Graham, a marine biologist at Mote Marine Laboratory."
If the bet is for searching donation to help the sharks, I think that will be a good idea because people can donate their money while enjoying betting something different from the other things. So in this matter, no winner, but the money will be to the sharks. People can buy whatever they choose, while they also donate.
If that is a success, perhaps, another bet will be starting for the animal that almost extinction, so we can help the animal to continue to survive, and they can lives better.