A year or so ago, The science channel (if I recall correctly) did a special on the design and construction of this water slide. They had lots of design challenges and initial testing proved that the “rafts” tended to go airborne at the top of the initial drop and the top of the second drop. They modified the angles of approach and put nets over the areas. Sounds like maybe something like an airborne raft may have recurred. Perhaps it was too light weight with a 10 year old in it. So sad.
Thanks for the information. It is much more coherent than the public remarks made by the authorities.
They had it sounding as a mystery why he died and that they were investigating. I took it that possibly it was even unrelated to the ride.
I would say the scene spoke for itself, if the little boy was decapitated or fell.