I research a lot about any place I travel to. I would hope most do the same. I agree, people need to educate themselves more. I think a sign like the one I post below (which is the Hyatt signs up the road) could have made a difference. Could have. Neither of us really knows. I guarantee there will be different signs there in the future though.
This was a freak tragedy. A perfect storm as I said. A 2 year old is dead. The parents will suffer more than we can imagine, and will pay for this for the rest of their lives. Disney will make changes.
I feel for these people. I hate playing the blame game in these situations, but there is much that can be learned from a tragedy like this.