That crash was supposedly around 120. So slowing down the boats isn't the answer.
The two most recent incidents here in the states with a cat going over and crew getting hurt were well below 120, one well below 100.
How about teams invest in the safety of their boats instead of worrying about tow rigs, pit partys, motorcycles, cars, cool paint jobs, matching uniforms or any of the other things that come before spending money on a quality canopy, windscreen, hinges, handles, seats, etc and making sure their boat is actually built correctly?
The knowledge, technology and parts are out there, they just cost money.
As far as the question, the fan in me wants to watch the big boats go fast.