Waiwera Warnings Or Dangers

The waterslides at Waiwera Thermal Resort were so special that I will NEVER forget so long as I may try. Reason being, In May 2009 I rocketed out of a tunnel to the bottom of a shallow pool only to absorb all impact with my leg, which didn't come out so well from that. I now have 2 plates and 9 screws permanently imbedded in my leg, and a reconstructed knee. A former marathoner runner, I will never run again.
Waiwera management thought it to be a reasonable level of risk!?!
For all that defend this place, there are people called engineers whom design slides SAFELY! I grew up going down a plethora of them in Wild Mountain and Wisconsin dells, google it! NO amount of injury this severe is EVER reasonable! And there are also things known as regulations to protect people, where they come into play here, I don't know. Obviously the public protection regulations NZ has were a catastrophic failure in concern to Waiwera injuries, which there have been a plethora of! So long as the public dishes out the cost of the medical expenses via ACC, Waiwera will never be held accountable and the public will continue to be at an unanticipated massive risk!